Thanks for the comments. Biggles, sorry, please could you provide a link for your manual search instructions as I'm not sure where to find them.
Also, I still don't see any 800 channels anywhere. What am I missing or where should I look?
My aerial is plugged into the 9300 first then goes to the tv.
I have the same issue with the Freeview tuner in my tv, re Sky News and Dave, one minute they're there and the next minute they are gone.
I switched the Humax to the Sky News channels yesterday, the picture was cracking up so I went to Signal Detection and the Signal strength was continually bouncing between 64% and 9%. I think that's what they call variable.
I agree the guy at Humax sounded like it was his first day on the job, maybe he had just come from Digital UK!
If I'm missing anything re manual tuning I'll give that another go, thanks again
Steve