Smart TVs have been relatively static in terms of big new features for a while. Screen quality keeps getting better, software keeps learning new tricks, but it’s pretty uncommon to get a new hardware feature. That’s why I was pretty excited to check out TCL’s QM9K series and, after a few months using this flagship-tier Google TV set, its unique presence-sensing tech that turns on the TV whenever I walk in the room is still a mix of really cool, and perhaps a little pointless. more…