The 'Sunshine Coast' channel list provided by shepherd causes me greif. I have a rather substantial antenna on my roof and the inclusion of ABC's Brisbane band causes myth to use the Brisbane ABC channels over the local ones. I get tuner lock, but in myth-frontend it shows no lock with 10% signal.
So I removed the 226.5MHz Transport and corrected the 767.5MHz transport to read the correct frequency of 767.625MHz (Bald Knob and Dulong towers). This fixes my ABC1/ABC HD/ABC3 channels. Probably don't need to correct the existing freq but meh.