Curiouser and curiouser... well it appears the channels are being stored, the problem seems to be that after turning the set on it takes ages for them to be displayed. I just turned the set on having left it on standby over night and it took 5-10 minutes for the channels to be available to view. Up until that point I just got the default screen and a 'no signal' message. It seems the longer the set's been off, the longer it takes to get itself up and running properly.
