I forgot exactly how it works but they essentially set the same price at every retailer, so a price drop is either a one off sale or everyone else also price dropped, hence why Best Buy is supposed to offer a price match.

For TCL, it was the QM8k, which has the new WHVA panel and a higher LED backlight density which makes it look like an OLED.

Only worth it if you can get it at a good price though (1-1.5k), otherwise you might find something better in the same price range at 2k and higher.