Its a non broadcasting channel to boot. was working fine, and attempted to change the channel by scrolling up and it stuck on a digital variation to pbs.Powers up, thats it...no menu control, no input selection, just stuck in limbo..any ideas?

Thanks

Try switching it off and unplugging it for an hour or so, it may be confused and needs to sort itself out and no Im not joking, many TVs etc work fine whet they are taken to a workshop