Hello further to your posting i too have the same problems i live in wales and prefer to be tuned into BBC/ITV Wales however after a few days or so it loses the welsh stations in favour of the west counrty, whats more i lose the HD channels completey and my timer settings also vanish .

It is so annoying i have just sent an E Mail to Sony Tech to see if they can give me an answer to it,

I have the same problem, HD channels disappear usually overnight. Just back from a week away, nothing recorded.

I think I will take this machine back to John Lewis, this is around the 5th time this has happened in the last couple of months, We receive a real good signal from Crystal Palace.

I have exactly the same problem on my HDT500. I updated the Firmware & have constantly reset to Factory setting then another full rescan which selects the correct channels. A few hours later some of the channels have changed back to the weaker channels which are out of my area! I also am finding it difficult to get an answer on the Topics page. If anyone has solved this problem it would be good to hear how!

Ok I have contacted the Sony helpdesk, concerning the matter. They say I need to contact an aerial engineer, to split better the signal. It seems the 2 signals in my case French and British are confusing their system. Squib751 I think it is the same for you. Obviously I am not going to get an engineer at my cost for that, I am contemplating a return to the retailer since it is not the right product for my area. Helpdesk had no comment when I mentioned this which you should be read as our product is not really adapted to all consummer and we not going to do anything about it.