I have a Sony KV27FS13 27" Wega and when I turned it on this morning, the "input" selection button wouldn't work on ANY of my remotes or even the TV's chassis. All that happens is the time gets displayed on the screen. I can navigate antenna based channels, but I just can't access the video inputs! Anybody have any experience with this? I have been in the service menu recently, but it was working fine for hours after some picture adjustments that I made.