When we were first set up with FIOS I was able to turn my Symphonic TV on/off with the Verizon remote. Some time later this stopped working and I vaguely recall a representative talking me through programming the remote, though I can't remember if we used the code or the code search method. A few months ago we lost this functionality again, along with volume control (which was also the case during the previous incident). I've tried programming the remote using both the code and the code search method. I've also tried switching remotes with another TV. Any idea why I can't program the remote for this TV anymore?