[mythtv] Wierd TV problem

[Mike Hyde]

I am having a odd problem wear the TV works, but is one channel ahead of
what the program guide says.  Eg, I am on channel 5 according to the
program guide, but it is actually channel 6 showing up in the TV
player.  

Another problem is that I have no sound.  How do I choose the input for
the audio source?

Thanks
Mike