I got 2011 m a an it’s got 3 TVs up stairs a 1 outside. Problem is remotes will work 2 in living room but they won’t work bedroom an outside an they are all same kind of tvs They are Sony’s Bravia. ...
Sony only uses a single code set per an app on my phone so the odds are the mounting on the ones it does not work with covers the sensor or something is overwhelming the remote's transmitter. IE: Florescent lights.