Choosing among TVs & display panels comes down to one immediate tradeoff: do you want the lower listed price, or a set with more specifically detailed picture-control features? The TCL 65Q77K and TCL 55QM6K Pro both target 4K smart-TV viewing and gaming, but they serve different priorities. Here is the clean split for a home theater TV or everyday streaming setup.
Quick verdict
Choose the TCL 65Q77K if the $240 price gap is decisive. Choose the TCL 55QM6K Pro if full-array local dimming is the feature you care about most. Both list 144Hz refresh, Variable Refresh Rate, Auto Low-Latency Mode, and Google TV, so those shared capabilities do not create a clear 1v1 advantage.
Compact comparison
| Comparison point | TCL 65Q77K | TCL 55QM6K Pro |
|---|---|---|
| Listed price | USD 259.99 | USD 499.99 |
| Screen and resolution | 65-inch, 4K UHD | 55-inch, 4K UHD |
| Smart platform | Google TV | Google TV |
| Gaming features | 144Hz, VRR, Auto Low-Latency Mode | 144Hz, VRR, Auto Low-Latency Mode |
| Standout picture detail | QLED and Quantum Dot color | Full-array local dimming |
Where each product wins
TCL 65Q77K

The 65Q77K wins for shoppers who want its 65-inch screen and QLED format. It is the straightforward large-screen choice, and its lower listed price makes the decision easier for buyers watching the total spend. The combination of 4K UHD, HDR support, and Quantum Dot color gives it a clear home-theater-oriented brief without relying on a shared gaming feature as the deciding factor.
TCL 55QM6K Pro

The 55QM6K Pro wins for shoppers who specifically want a CrystGlow HVA anti-reflective panel. That is a concrete differentiator for a room where reflections are a concern. Its picture feature mix also calls out local dimming, making it the more specifically equipped choice for buyers comparing screen-control features rather than simply choosing the largest panel.
Product notes
TCL 65Q77K QLED TV
Screen-first shoppers have a clear reason to choose the TCL 65Q77K: the 4K UHD QLED display is paired with Quantum Dot color technology and HDR formats including Dolby Vision, HDR10+, HDR10, and HLG. It also brings living-room extras such as built-in Google Chromecast, Apple AirPlay 2 support, and Dolby Atmos audio. The limitation in this matchup is its picture-control emphasis: the rival specifically calls out up to 500 precise dimming zones, a detail that may matter more to shoppers comparing backlight features. The TCL 65Q77K remains the lower-price route, with its listed USD 259.99 price clearly below the alternative.
TCL 55QM6K Pro Smart TV
Choose the TCL 55QM6K Pro when its focused picture extras match your priorities. The TCL Halo Control System is a concrete reason to consider it, alongside the CrystGlow HVA anti-reflective panel. The 4K UHD resolution, HDR support, and HDMI and USB inputs cover the core requirements for a 4K smart TV. Its limitation is the higher listed price and smaller listed screen than the TCL 65Q77K, so shoppers whose first filter is lower spend or maximum image area may prefer the other model. For a buyer focused on picture-control additions, the tradeoffs are clear and easy to weigh.
Final choice by use case
- For a larger home theater screen: Choose the TCL 65Q77K and its 65-inch format.
- For reflection-conscious placement: Choose the TCL 55QM6K Pro for its CrystGlow HVA anti-reflective panel.
- For picture-control features: Choose the TCL 55QM6K Pro for its TCL Halo Control System.
- For gaming: Treat the matchup as a tie on the listed gaming features, then decide using screen size and price.
The clearest overall split is simple: the TCL 65Q77K prioritizes screen size and a lower entry price, while the TCL 55QM6K Pro asks for more money in exchange for a more specifically detailed picture-feature mix.