Best Buy vs Amazon vs Costco TV: Where to Buy in the US 2026

Buying a TV in the United States in Q4 2026 is a game of three different pricing models pretending to be one. Best Buy carries the widest catalog and runs the loudest Black Friday marketing. Amazon undercuts on Prime-shipped mid-tier sets and layers lightning deals that can shift by the hour. Costco quietly wins on ownership economics with a 90-day return window and a bonus year of warranty coverage that neither Best Buy nor Amazon match without paid add-ons. The right retailer depends on which TV you actually want, how long you plan to keep it, and whether you value catalog breadth over protection.

The verdict

For US TV buyers in Q4 2026, Costco is the strongest choice on premium OLED and Mini LED sets it carries, thanks to a 90-day return window, an automatic second year of manufacturer-parity coverage through Costco Concierge, and per-SKU pricing that typically matches or beats Best Buy on the roughly 30 to 40 TVs stocked at any time. Best Buy is the reliable choice for catalog breadth, in-store viewing, Geek Squad wall-mount install, and doorbuster pricing on Insignia Fire TVs during Black Friday. Amazon leads on mid-tier and budget TVs from TCL, Hisense, and Insignia and is the fastest fulfillment option for buyers on Prime. Layering ShopBack cashback on Best Buy and Costco purchases stacks on top of any of these paths.

Activate cashback via ShopBack before checkout at Best Buy and Costco on your next TV. Sign up for ShopBack and earn on your next TV purchase.

ShopBack is a US cashback and rewards platform with more than 2,000 US merchants including Best Buy, Costco, Samsung, LG, Sony, and hundreds of other electronics retailers. Members activate cashback with a single click before checkout, and confirmed cashback withdraws to bank or PayPal once the wallet clears the payout threshold. Signup takes about two minutes at shopback.com.

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What the three retailers actually sell

The word "TV retailer" hides three different business models in 2026, and confusing them is the fastest way to overpay or under-protect a $1,500 to $3,500 purchase.

Best Buy is a specialty electronics retailer. Its TV business is 200-plus SKUs across every size class, every brand tier, and every panel technology. Best Buy trains store staff on TV features, stocks demo units on the wall, offers Geek Squad wall-mount install as a paid service, and layers a three-tier membership program (free, My Best Buy Plus at $29.99 per year, My Best Buy Total at $199.99 per year) that changes the return window and the rewards rate. Best Buy's own Insignia and Pacific brands add house-brand pricing at the low end.

Amazon is a marketplace with a first-party electronics catalog. The Amazon TV catalog is huge but variable, mixing first-party fulfillment with third-party sellers who ship the same or similar SKUs at different price points. Amazon's own Fire TV brand sits at the entry level, and Amazon frequently discounts partner brands (TCL, Hisense, Samsung) with lightning deals that show up in the app but not on the desktop site. Return handling on TVs is 30 days with possible restocking fees, and Amazon Home Services can arrange third-party wall-mount install for a fee.

Costco is a warehouse club with curated stock. Costco does not try to carry every TV. It carries roughly 30 to 40 curated SKUs at any time, negotiates pre-bundled promotions (extra HDMI cable, extended warranty, gift card credit), and offers two ownership benefits that the other two do not: a 90-day return window with no membership tier gating, and a bonus year of manufacturer-parity coverage through Costco Concierge. The tradeoff is that Costco may not carry the exact SKU you want, and store display for TVs is limited compared to Best Buy.

Understanding those three models is the whole comparison. Everything below is an implication.

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The Best Buy TV story in 2026

Best Buy remains the reference retailer for premium TV shoppers in the US, largely because it is the only one of the three that reliably stocks the full lineup from Samsung, LG, Sony, TCL, Hisense, and every meaningful challenger brand. If you want to compare the LG C5, LG G5, Sony Bravia 8 II, and Samsung S95F side by side, Best Buy is where you can do it in person.

Pricing. Best Buy's shelf price on flagship OLED and Mini LED sets typically matches Samsung.com, LG.com, and Sony.com on named SKUs. Amazon undercuts by a small margin (often 1 to 3 percent) on the same SKU, and Costco either matches or beats when it stocks the model. Best Buy's Black Friday and Cyber Monday doorbusters on its house-brand Insignia Fire TVs are the lowest US price on those SKUs; the 70-inch Insignia F50 Series has been a repeat sub-$300 doorbuster in recent years.

Returns and membership. Best Buy's standard return window is 15 days from delivery for non-members. My Best Buy Plus at $29.99 per year extends returns to 60 days on most products, adds free two-day shipping, unlocks member-only sales, and pays 1 percent back in rewards on eligible purchases. My Best Buy Total at $199.99 per year adds product protection (including AppleCare Plus on Apple devices), free 24/7 tech support, and 20 percent off Geek Squad repairs.

Warranty. Best Buy sells third-party protection through Geek Squad Protection Plans for TVs, typically at $99.99 to $349.99 depending on the TV price band and the coverage term. The plan covers accidental damage on some tiers, panel failures, and burn-in on OLED (a valuable inclusion for LG C-series and G-series buyers). Without the plan, Best Buy passes through the manufacturer warranty (typically one year on parts and labor).

Install. Geek Squad wall-mount install for a 55-inch to 85-inch TV runs $199.99 to $349.99 in the US in 2026, with variable pricing by market. Best Buy occasionally bundles free basic mounting with premium OLED purchases during major sale windows.

Where Best Buy is strongest.

• Buyers who want to see the TV on the wall before buying
• Buyers who value catalog breadth and want a specific SKU
• Buyers on the Best Buy credit card (6 percent back in rewards, occasional 18-month 0 percent financing on TVs)
• Buyers stacking Geek Squad install and Geek Squad Protection at the same time
• Black Friday doorbuster hunters going after Insignia Fire TVs

Where Best Buy requires care.

• Standard 15-day return window is the shortest of the three retailers
• Geek Squad Protection is a paid add-on, not free
• Non-Plus non-Total buyers pay full shipping on some smaller-screen TVs

Activate cashback via ShopBack before checkout at Best Buy, and the ShopBack rate applies on top of whatever Best Buy price and My Best Buy rewards you already have. Rates change monthly; check the current Best Buy rate on shopback.com.

Best Buy TV shoppers: Shop Best Buy via ShopBack to activate cashback on top of Best Buy's price.

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The Amazon TV story in 2026

Amazon is the retailer most US buyers already default to, and for mid-tier and budget TVs it is the right default. The 30-day return window is longer than Best Buy's standard 15 days, Prime shipping puts a 55-inch TV in the living room in a day or two in most metro areas, and the pricing algorithm keeps popular SKUs within a few percent of the lowest US price at any time.

Pricing. Amazon's pricing on Amazon-brand Fire TVs is definitionally the lowest US price on those SKUs. On third-party brand TVs (TCL, Hisense, Samsung, LG, Sony), Amazon competes hard on the mid-tier volume models (55-inch and 65-inch Q6 and Q7 Mini LED sets from TCL, 55-inch to 75-inch mid-range QLED from Samsung and Hisense) and less hard on the highest-end SKUs where Best Buy and Samsung.com run authorized-dealer minimum prices. Amazon's lightning deals occasionally drop a mid-tier TV by 30 to 40 percent for a few hours during Prime Day, Black Friday, and Cyber Monday.

Returns and Prime. Standard TV returns run 30 days from delivery. Restocking fees may apply on opened units; Amazon's policy language leaves some discretion to the fulfilment center. Prime membership costs $14.99 per month or $139 per year in the US and adds free two-day shipping, Prime Video, and lightning-deal early access.

Warranty. Amazon passes through the manufacturer warranty (typically one year on parts and labor) with no extension. Third-party Asurion protection plans are available at checkout for an additional 10 to 20 percent of the TV price, but these are separate insurance products and their claim process is different from Best Buy's Geek Squad or Costco's Concierge.

Fulfillment and install. Amazon Home Services can arrange third-party wall-mount install for a fee, though quality varies by market and the technician is not an Amazon employee. Large-screen TV delivery (75-inch and 85-inch) may involve threshold delivery rather than in-home placement; buyers who need the TV brought to the living room and unboxed should read the fine print.

Where Amazon is strongest.

• Mid-tier and budget TVs from TCL, Hisense, Insignia, Fire TV, and Samsung entry-line models
• Buyers on Prime who value 2-day delivery over in-store viewing
• Lightning-deal opportunists watching Camelcamelcamel and Keepa for price drops
• Buyers who want a longer return window than Best Buy's standard 15 days without paying a membership fee
• Repeat Amazon buyers who accumulate Amazon rewards through the Amazon Prime Visa

Where Amazon requires care.

• Third-party sellers on the same product page can complicate returns and warranty
• Restocking fees are possible on opened electronics
• ShopBack does not partner with Amazon in the US, so cashback via ShopBack is not available on Amazon TV orders (compare TV prices on shopback.com against Best Buy and Costco to see whether the cashback layer at those retailers offsets a small Amazon price advantage)
• Home delivery of large-screen TVs may be curbside or threshold only

For US TV shoppers, Amazon is best treated as a price-checking anchor rather than an automatic first choice on premium OLED. Set the Amazon price as the baseline, then check Best Buy and Costco with ShopBack cashback layered on to see which retailer clears the total cost.

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The Costco TV story in 2026

Costco is the retailer most US TV buyers overlook and most TV owners recommend the loudest. The reason is that Costco's business model treats warranty and return as part of the purchase, not as a paid add-on. On a $1,500 to $3,500 premium TV, that changes the effective cost meaningfully.

Pricing. Costco's headline TV pricing on the 30 to 40 SKUs it stocks in 2026 is typically at or below Best Buy on the same SKU, often bundled with a Costco Shop Card credit ($100 to $300 depending on the TV), an extended warranty pre-negotiated by Costco's buyers, or an accessory bundle (soundbar, wall mount, HDMI cable). Recent 2026 examples include 65-inch TCL QM6K Pro Mini LED sets stocked with 5-year warranty coverage and 90-day return baked in at the $500 to $550 tier, and premium 77-inch LG OLED sets typically running $200 to $400 below Best Buy's list on the same SKU.

Return window. 90 days from date of receipt on TVs in the US in 2026. No membership tier gating (the standard Gold Star membership at $65 per year is sufficient, and the Executive membership at $130 per year adds 2 percent Executive Rewards on the purchase). No restocking fees. This is the longest return window among the three retailers by a wide margin.

Warranty via Costco Concierge. Every TV sold through Costco warehouses or Costco.com receives an automatic second year of manufacturer-parity warranty coverage through Costco Concierge, on top of the manufacturer's standard one-year warranty. Costco Concierge is free technical support seven days a week, staffed by trained agents who diagnose and dispatch repair or replacement. Paying with the Costco Anywhere Visa by Citi adds up to two additional years of purchase-protection coverage on eligible items via the card's warranty extension benefit, though the card-level protection is subject to its own terms.

Membership. Standard Gold Star membership is $65 per year; the Executive tier at $130 per year adds 2 percent Executive Rewards on the purchase (up to an annual cap). Executive Rewards effectively rebate 2 percent of TV spend back to the member as an annual credit.

Install. Costco does not offer in-house wall-mount install. Third-party install through TaskRabbit, Amazon Home Services, or a local AV installer is the standard path. Costco's home delivery on larger TVs typically includes in-room delivery on Costco.com orders, which many warehouse-only shoppers do not realize.

Where Costco is strongest.

• Premium OLED and Mini LED buyers on Samsung S95F, LG C5, LG G5, Sony Bravia 8 II, and TCL QM7-tier and above
• Buyers who value the 90-day return window as protection against panel defects and buyer's remorse
• Buyers who plan to keep the TV for 3-plus years and value the second warranty year
• Executive members who want to layer 2 percent Executive Rewards on TV spend
• Cashback stackers who activate cashback via ShopBack before checkout at Costco.com

Where Costco requires care.

• Curated 30 to 40 SKU catalog means the exact TV you want may not be stocked
• In-store display of TVs is more limited than Best Buy
• Wall-mount install is not offered in-house; third-party required
• Membership is required to complete the purchase

Compare TV prices on shopback.com to see cashback rates alongside retail prices at Costco and Best Buy before you commit; Costco's warranty economics often clear the small price gap even if the sticker looks $50 to $100 higher at first glance.

Costco TV shoppers: Shop Costco via ShopBack to activate cashback on top of Costco's bundle pricing.

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Best Buy vs Amazon vs Costco side by side

Feature	Best Buy	Amazon	Costco
Approximate TV catalog size	~200+ SKUs	Very large (incl. 3P sellers)	~30 to 40 curated SKUs
Standard return window on TVs	15 days	30 days	90 days
Extended return window path	60 days via My Best Buy Plus	None on TVs	90 days standard
Membership cost	Free base; $29.99/yr Plus; $199.99/yr Total	Prime $14.99/mo or $139/yr	Gold Star $65/yr or Executive $130/yr
Manufacturer warranty length	1 year (typical)	1 year (typical)	1 year (typical)
Retailer warranty extension	Paid Geek Squad Protection	Paid Asurion or none	Free +1 year via Costco Concierge
Free 24/7 tech support	Total tier only ($199.99/yr)	No	Yes, Costco Concierge
Wall-mount install	Yes, Geek Squad (paid)	Third-party via Amazon Home Services	Third-party recommended
Best-price tier	Premium OLED (competitive); Insignia doorbusters (leader)	Mid-tier and budget TCL, Hisense	Premium OLED and Mini LED on stocked SKUs
ShopBack cashback available	Yes	Not available on Amazon US	Yes
Layered credit card rewards	My Best Buy Credit Card (6% back)	Amazon Prime Visa (5% back)	Costco Anywhere Visa (2% back on Costco)
Bundle upside	Occasional AppleCare, Beats bundles	Lightning deals	Costco Shop Card credit, accessory bundles
Delivery speed on standard TVs	2 to 5 days	1 to 2 days on Prime	3 to 7 days
Free in-home delivery on large TVs	Available on 55"+	Threshold delivery on some SKUs	In-home on Costco.com
In-store viewing	Extensive	None	Limited
Sale cadence for extra credit	Black Friday, Cyber Monday, Super Bowl, holiday	Prime Day, Black Friday, Cyber Monday	Rolling monthly promos, Black Friday, Members-Only

The table is the argument in one page: Best Buy is the specialty retailer, Amazon is the marketplace, and Costco is the ownership-economics play. All three sell the same TVs at slightly different prices with very different downstream costs.

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Which retailer fits your TV purchase

Buyer profile	Best path	Why
Buying a premium OLED (LG C5, LG G5, Sony Bravia 8 II, Samsung S95F)	Costco if stocked, Best Buy otherwise	90-day return plus second warranty year materially reduces panel-defect risk on a $1,500 to $3,500 purchase
Buying a mid-tier Mini LED (TCL QM6K, Hisense U7)	Amazon or Walmart	Amazon and Walmart lead on TCL and Hisense mid-tier pricing
Buying a budget 55-inch to 65-inch (Insignia, Fire TV)	Best Buy on Black Friday, Amazon otherwise	Insignia Fire TV doorbusters at Best Buy Black Friday are typically the lowest US price
Buying a Samsung Frame or Serif design TV	Best Buy or Samsung.com	Best Buy carries the widest Frame SKU list
Buying a wall-mount install package	Best Buy	Geek Squad install is the cleanest single-vendor solution
Buying for a rental home or short-term stay	Amazon	30-day return and 1-2 day Prime shipping are the priorities
Buying two or more TVs for a whole-home refresh	Costco Executive	2 percent Executive Rewards on the total plus 90-day return per set
Buying a specific 2026 model launch SKU day one	Best Buy or Samsung.com/LG.com	Widest launch-day stock allocation
Buying with financing (18-month 0 percent)	Best Buy with My Best Buy Credit Card	Best Buy runs 0 percent financing windows on select TVs during major sale events
Buying to replace a failed TV mid-warranty	Costco if under 2 years, manufacturer otherwise	Costco Concierge covers year 2; original retailer covers year 1

The single biggest mistake US TV buyers make on this decision is choosing on sticker price alone. A $1,500 OLED at Best Buy that fails in month 14 costs $1,500 plus a paid repair or replacement. The same OLED at Costco is covered through month 24 via Concierge. The effective cost gap on premium sets is usually larger than the sticker gap.

Compare TV prices on shopback.com to see cashback rates alongside retail prices at Best Buy and Costco. Sign up for ShopBack and activate cashback before checkout.

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The Samsung, LG, Sony, and TCL price map in Q4 2026

The four brands that matter for most US TV shoppers in 2026 each have a distinct sweet spot across the three retailers.

Samsung. The Neo QLED (QN80F, QN90F, QN95F) and S-series OLED (S95F, S90F) Mini LED and OLED lines carry authorized-dealer minimum pricing across Best Buy, Amazon, and Samsung.com, so headline sticker differences are typically small (within 1 to 3 percent). Costco stocks a curated subset of Neo QLED sets with pre-bundled Shop Card credits worth $100 to $300, which usually clears the sticker gap. For The Frame and Serif design TVs, Best Buy is the widest catalog; for pure price on Neo QLED, Costco when stocked. Samsung Care Plus is a paid add-on across all three retailers if you want extended coverage.

LG. The C-series (C5) and G-series (G5) OLED lines are the most price-fluid across the three retailers in 2026. Best Buy stocks the widest LG catalog and runs frequent LG-specific promotions during Super Bowl and Black Friday windows. Amazon competes on the 55-inch and 65-inch C-series with lightning deals. Costco stocks the 65-inch and 77-inch C-series and G-series with pre-bundled 5-year warranty coverage that materially changes the ownership math on a $2,500 to $3,500 purchase. Burn-in coverage on OLED is a real consideration, and Costco Concierge's second year of coverage typically extends the panel-defect claim window without a paid add-on.

Sony. The Bravia 8 II OLED and Bravia 9 Mini LED lines are stocked at Best Buy and Amazon with strong authorized-dealer pricing consistency. Costco stocks select Bravia Mini LED SKUs with warranty bundles; the Bravia OLED lineup at Costco is less consistently stocked than LG or Samsung. For Sony buyers who value the picture processor and Google TV integration, Best Buy is the reliable stock source; if Costco has the exact SKU, the warranty economics still favor Costco.

TCL. The QM6K, QM7K, and QM8K Mini LED lines are Amazon and Walmart's strongest category. TCL's US business runs aggressive Prime Day and Black Friday pricing that Best Buy matches selectively. Costco stocks select TCL SKUs (recent examples include the 65-inch QM6K Pro at the sub-$550 tier with 5-year warranty coverage and 90-day return baked in), which represent unusually strong value for premium-adjacent buyers. Hisense (U6, U7, U8 Mini LED) follows a similar pattern with slightly less Costco stock consistency.

Activate cashback via ShopBack before checkout at Best Buy or Costco on any of these brands, and the cashback rate applies on top of the brand and retailer promotion.

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The Black Friday and holiday cadence

Q4 2026 TV pricing follows a predictable US retail cadence. Buyers who know the cadence can time a purchase to the widest discount window.

• Mid-October pre-Black Friday teasers. Best Buy, Amazon, and Costco all run early-bird TV promotions in the second and third weeks of October 2026, typically at 70 to 85 percent of the peak Black Friday discount. If you cannot wait, mid-October is the earliest sensible entry point.
• Black Friday week (November 24 to 28, 2026). Peak headline discounts across all three retailers. Best Buy doorbusters on Insignia Fire TVs go live at midnight on Black Friday morning. Costco runs Members-Only pricing across its 30 to 40 SKU curated stock. Amazon layers lightning deals that shift hourly.
• Cyber Monday (December 1, 2026). Online-only extension of Black Friday. Best Buy Cyber Monday pricing on OLED sometimes beats Black Friday sticker; Amazon runs additional lightning deals. Costco.com continues its Black Friday pricing without a Cyber Monday-specific escalation.
• Mid-December holiday window. Discounts soften slightly as inventory tightens on best-selling SKUs. Wall-mount install slots at Geek Squad book out 2 to 3 weeks in advance.
• December 26 to January 3 clearance. Model-year 2026 SKUs that did not sell through get 5 to 15 percent additional markdown at Best Buy and Costco. Amazon runs quieter clearance without headline marketing.
• Super Bowl LX weekend (February 8, 2026 window for MY2025 clearance, and February 2027 for MY2026). Best Buy's Super Bowl TV sale is historically the largest post-holiday discount event, particularly on larger-screen (75-inch and 85-inch) Mini LED sets.

The single reliable extra layer across all these windows is ShopBack cashback at Best Buy and Costco. Activate cashback via ShopBack before checkout at Best Buy at the peak of any of these sales, and the cashback rate applies on top of the discounted sticker.

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When to skip all three and buy direct

Three scenarios where a direct-from-brand purchase beats all three retailers.

Scenario 1: Samsung.com or LG.com trade-in promotions. Samsung and LG both run their own trade-in programs against a working TV, tablet, or phone, sometimes stacking with a launch-window pricing discount that Best Buy, Amazon, and Costco cannot match on the same day. For newly launched flagship OLED and Mini LED, checking Samsung.com and LG.com is worth 30 seconds before committing to a retailer.

Scenario 2: Samsung Care Plus and LG ThinQ Care. If you want a first-party extended warranty specifically underwritten by the manufacturer (rather than Geek Squad, Costco Concierge, or Asurion), buying direct from Samsung.com or LG.com and adding Samsung Care Plus or LG ThinQ Care at checkout keeps the warranty chain single-vendor. This matters for buyers who have had bad Geek Squad or Asurion claim experiences.

Scenario 3: Local independent AV dealers for calibrated setup. For $3,500-plus flagship OLED and Mini LED sets, a local high-end AV dealer often bundles ISF-certified calibration and in-home tuning that no big-box retailer offers. The sticker is higher, but the picture quality delta after calibration is real for videophile buyers.

These are edge cases. For 90 percent of US TV shoppers in 2026, one of Best Buy, Amazon, or Costco is the right retailer.

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When this does NOT apply

• You are outside the United States. Best Buy operates in the US only in 2026; Amazon and Costco operate internationally but with different pricing, warranty, and return terms per market. This article is written for US buyers.
• You are buying a projector, soundbar, or non-TV display. The comparison applies only to standalone TVs. Soundbar and home theater comparisons follow a different retailer pattern.
• You are shopping used or refurbished. Manufacturer-refurbished TVs at Samsung.com, LG.com, and Sony.com carry different warranty terms than retail-new units. Costco does not sell refurbished TVs.
• You are buying commercial or hospitality-grade displays. Commercial signage from Samsung, LG, Sony, and NEC is a separate B2B channel with different pricing, warranty, and return terms.
• You are buying under a corporate purchasing account. Corporate accounts at Best Buy for Business, Amazon Business, and Costco Business have different pricing and return terms than consumer accounts.
• You are buying a large-screen (98-inch or 100-inch) TV. Delivery, install, and warranty logistics on 98-inch and 100-inch sets are complex enough that manufacturer-authorized installers often make more sense than any of the three retailers.

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Frequently asked questions

Which retailer is actually cheapest for a TV in the US in 2026?

It depends on tier. For premium OLED and high-end Mini LED sets from Samsung, LG, and Sony, Costco often has the lowest sticker in the US in 2026 on the models it carries, typically within $50 to $200 of Best Buy and Amazon and sometimes lower. For mid-tier and budget TCL, Hisense, and Insignia models, Amazon and Walmart lead on absolute price. Best Buy is competitive across the widest catalog and matches Amazon on named models more often than not. Layering ShopBack cashback on Best Buy and Costco can shift the final effective price.

Does Costco really extend the manufacturer warranty on TVs?

Yes. Costco Concierge provides a second year of warranty-parity coverage on TVs sold through Costco warehouses or Costco.com in the US, on top of the manufacturer's standard one-year warranty. Costco Concierge also provides free technical support seven days a week. Paying with the Costco Anywhere Visa card by Citi adds up to two additional years of purchase-protection coverage on eligible items, though the terms of the credit card protection differ from Costco Concierge.

How long do I have to return a TV to Best Buy, Amazon, or Costco?

Best Buy's standard return window on TVs is 15 days from delivery for non-members. My Best Buy Plus members ($29.99 per year) and My Best Buy Total members ($199.99 per year) get 60 days on most products. Amazon's default return window on TVs is 30 days from delivery, with restocking fees possible on opened units. Costco offers a 90-day return window on televisions across the board, no membership tier required beyond the standard warehouse membership.

What retailer has the widest selection of TVs in 2026?

Best Buy carries the widest catalog at around 200-plus TV models across sizes and brands in the US in 2026, including specific Samsung Frame, LG G-series OLED, and Sony Bravia SKUs sometimes not on Amazon or Costco. Amazon carries a large catalog too, though third-party sellers add variability. Costco carries roughly 30 to 40 curated SKUs at any given time, weighted toward premium and mid-premium sets with pre-negotiated bundle savings.

Are Best Buy Black Friday TV deals actually the cheapest?

Best Buy is one of the strongest promoters of premium OLED and Mini LED TV deals during the Black Friday and Cyber Monday window in 2026, and its doorbusters on Insignia Fire TVs are typically the lowest US price on those models. Costco tends to run parallel bundle promotions that beat Best Buy on total value once the extra Concierge year and 90-day return are priced in. Amazon layers lightning deals and Prime-only discounts that occasionally undercut both on specific SKUs.

Can I use ShopBack when buying a TV at Best Buy or Costco?

Yes. Best Buy and Costco are both ShopBack US merchants. Activate cashback via ShopBack before checkout at Best Buy or Costco, then complete the purchase on the retailer's website in the same browser session. Cashback tracks in your ShopBack wallet within a few hours and confirms after the retailer's return window closes. Rates change by merchant and month, so compare TV prices on shopback.com to see cashback rates alongside retail prices before you pick a retailer.

Will ShopBack cashback stack with Best Buy Plus or Costco Concierge?

Yes. ShopBack cashback is a separate promotional layer from Best Buy's membership rewards and Costco's Concierge warranty. Cashback tracks as long as you click through ShopBack before checkout, and My Best Buy Plus rewards points continue to accrue on the same transaction. Costco Concierge is a service benefit and does not affect cashback tracking. Check current merchant terms on the ShopBack merchant page in case of category exclusions.

Should I buy an OLED TV from Costco or Best Buy in 2026?

For LG C-series, LG G-series, Sony Bravia OLED, and Samsung S-series OLED sets, Costco is usually the safer buy if the SKU is stocked, because the 90-day return plus the second warranty year materially reduces panel-defect risk on a $1,500 to $3,500 purchase. Best Buy wins on SKU breadth, in-store viewing, and Geek Squad wall-mount install. If Costco carries the model you want, price it there first; if not, Best Buy is the reliable fallback.

Where do I get the best price on TCL and Hisense TVs in the US?

Amazon and Walmart typically lead on TCL and Hisense TV pricing in the US, particularly on Q-series and QM-series Mini LED models. Costco occasionally runs strong TCL bundles (recent 65-inch TCL QM6K Pro promotions bundled the 5-year Costco warranty coverage). Best Buy stocks the widest TCL and Hisense SKU list but is rarely the absolute lowest price on the mid-tier volume models.

Is My Best Buy Plus worth it just for the extended TV return window?

For a single TV purchase, probably not. My Best Buy Plus costs $29.99 per year (recently reduced from $49.99), extends returns from 15 to 60 days, and adds 1 percent back in rewards on eligible purchases plus free two-day shipping. If you also buy other Best Buy electronics annually and want member-only sales access, the math works out. If Costco carries the TV you want, the free 90-day return through your warehouse membership beats Plus outright on that dimension.

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Key takeaways

• Costco is the strongest choice on premium OLED and Mini LED TVs it stocks in 2026, thanks to a 90-day return window and a free second year of warranty-parity coverage through Costco Concierge
• Best Buy carries the widest 200-plus SKU catalog with My Best Buy Plus ($29.99/yr) extending returns to 60 days and adding 1 percent rewards
• Amazon leads on Prime-shipped mid-tier and budget TCL, Hisense, and Insignia SKUs with a 30-day return window
• Costco's Executive tier ($130/yr) layers 2 percent Executive Rewards on TV purchases, up to an annual cap
• Best Buy Insignia Fire TV Black Friday doorbusters remain the lowest US price on those specific SKUs
• Samsung Neo QLED and S-series OLED pricing carries authorized-dealer minimums, so bundle credits (Costco Shop Card) usually determine the effective winner
• LG C5 and G5 OLED buyers should check Costco first, Best Buy second, Amazon third
• TCL and Hisense mid-tier Mini LED are Amazon and Walmart's strongest category
• Wall-mount install is cleanest through Best Buy Geek Squad; Costco and Amazon route to third-party installers
• ShopBack cashback is available at Best Buy and Costco (not Amazon in the US) and stacks on top of retailer promotions

Ready to upgrade your TV? Sign up for ShopBack to earn cashback at Best Buy, Costco, and 2,000+ US merchants.

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About this section

As of 2026-08-25, TV pricing, return windows, warranty terms, and membership tier benefits at Best Buy, Amazon, and Costco are subject to change and vary by SKU, promotion window, geography, and account type. Verify current terms directly with the retailer before purchasing. Costco Concierge coverage, My Best Buy Plus and Total benefits, and Amazon Prime terms are set by each retailer and are reviewed periodically.

This article is intended for general informational purposes and should not be considered professional purchasing or financial advice. Effective cost depends on individual SKU choice, membership status, credit card rewards structure, and post-purchase experience.

Written by Garry Shi, Cashback Expert at ShopBack.

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Brands, work with us: garry@shopback.com.