Is the TCL QM8K worth $3,600 more than the LG?

Only if picture quality is the priority. The TCL adds Mini LED dimming, far higher brightness and 144Hz; the LG is a basic 75-inch 4K set. For casual streaming, the LG covers the basics.

Which is better for gaming?

The TCL QM8K. It has a 144Hz native panel, Game Accelerator 288 and four HDMI ports. The LG is 60Hz with three HDMI ports.

Which is better for a bright living room?

The TCL QM8K. Its high HDR brightness and anti-reflective panel handle bright rooms better. The LG has no published brightness figure.

Which has the bigger screen?

The LG, at 75 inches. The TCL QM8K's screen size is not stated in the listing, so check the exact model size before buying.

Neither maker publishes a lifespan figure. Both are LED-based, and the TCL's higher brightness may stress its backlight more, but there is no data to confirm a difference.

Where can I buy each one?

As of November 6, 2026, the TCL QM8K is $3,999.99 at Best Buy and 2 stores price it new. The LG is $379.99 at Best Buy and 8 stores price it new.

TCL QM8K QD-Mini LED TV vs LG 75-Inch 4K UHD Smart TV

Buy the TCL QM8K if you want a bright, high-contrast QD-Mini LED picture with 144Hz gaming and 3,800 dimming zones. Buy the LG 4K UHD Smart TV AI if you want a large 75-inch 4K screen at a low price and don't need high brightness or fast motion. The gap is huge: $3,999.99 at Best Buy for the TCL as of November 6, 2026 versus $379.99 at Best Buy for the LG.

Today the LG 75-Inch 4K UHD Smart TV costs $830.00 less at its best price.

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