Give it some time. WRC just added 4-3, and they screwed up the PSIP data for 4-1. More technical details can be found over at AVS. Something about not full 1080i.

You can try to do a full channel scan and see if the TV picks up the new signals. Night work. I have the problem of no audio on 4-3. Looks like they are using MPEG-2 audio instead of Dolby Digital, and some of the CECB boxes don't like that.

So I would recommend wait until Monday or Tuesday so the techs at WRC can work on the problem, and see if it clears up.

-John