I'm the author of the original Q. More info on this issue. This TV is a ROKU-Brand Smart HDTV using the ROKU Operating System. Seems these ROKU-labeled HDTV hardware units/components are designed/manufactured presumably by some other off-shore house like TCL, Hisense, or some other Chinese mom & pop operation... ROKU does not make TV hardware as far as I know. My ROKU Plus Series 4K QLED HDTV is a 3-day old Best Buy purchase... there is an amazing and madeningly design issue within... basic TV controls (volume on-off, etc.) seem to be incompatible (aka non-functional) with DirecTV Univeral Remotes. It is believed that the ATT/DirecTV (DTV) sat service provider "help desk" has no idea what the appropiate, if any, 5-digit setup code is for the DTV Series 60 "Universal Remote Control." ALL other HDTVs recently evaluated over the past 3-weeks are fully compatible with the DTV Universal Remote Control. ROKU help is equally both unhelpful and in-the-dark on this compatibility. I'm retuning this $600+ HDTV to Best Buy in a couple days citing this issue as unacceptable. My Christmas wish... a qualified ROKU HDTV technical engineer to state -- "...our design fails to consider DTV Series 60 Universal Remote Compatibility." A qualified person might also recommend a truely universal multi-device fully compatible with all resonable possible devices (TV, DVR, DVD/Blue-ray player, DTV Sat Receivers, etc.). I like the ROKU smart TV OS over GoogleTV, Fire, etc., operating systems, but this compatibility issue, if true, is both unbelieveable and technically unacceptable. I'll be moving on to a more classy operation like Samsung. Please HELP... facts are much appreciated, opinions -- please keep 'em. Many thanks.
Regards, Poceus of New York State.
D. James Paul