Since the move TV service has been steady at 0-2% CPU. So it seems the problems were to do with signal strength.
Wow, who would of thought of that.
2009-03-14 17:55:57.212410 [6]: ***** SIGNAL LEVEL: 4, SIGNAL QUALITY: 0 *****
And that's one of your good ones, might be worthwhile looking at the TVServer log and seeing what the current reception shows.
United Kingdom