a friend of mind has a vw22lhdtv10t with a 715t2763-1 board the remoote will turn on and off the tv but the tv is on channel three with horz. lines. None of the button on the side of the tv will do anything. I can hold the on off button in and the remote will change the channel to for and the has picture but in about a minute the tv will revert back to channel three. I have did what vizio ot reset the memory with no results. Does anyone have any idea what it could be or where to start ? thank you