we had fios tv set up on monday and i told the tech we had a new tv on the way and i would be switching to it. he programmed the remote to the old set and everythong worked great. i set up the new tv today. it works fine, except i cannot use the a/v button to access and select our dvd or html for roku. these previously worked when they were programmed on monday. i just need to know how to program this function. online chat with mohammed didn't fix the problem. we have the standard set top box, not the dvr.