[mythtv] [Experimental PATCH] BIG DVB PATCH V3.0

[Taylor Jacob]

> It was mentioned a while back that at some point these dvb patches
> would fix the bug where if you tune to a channel that isnt curretly
> broadcasting myth locks up.

This is the inteligence in the frontend backend protocol.  The current problem
is that even if the backend knows there will be no videostream it says it has
tuned properly there is no way to let the frontend know..