Favourite setting lost when switched off

I think it is actually Channel 7 causing the problem. I have the same TV and have noticed that Ch7 only drops off the Favourites list when 7 telecasts a program in Standard Definition (SD) on the High Definition (HD) channel 70. They usually seem to do this when broadcasting sporting events. You can check if they're broadcasting in SD on the HD channel 70 by pressing the "INFO" key (also labelled "<<", just above the "TEXT" key). The channel description will read "70 7 SD Digital" instead of "70 7 HD Digital". (You will also see this when you change to channel 70 during these times.) Every time they've done this, I've lost the 7 HD channel from my favourites list. If you re-program channel 70 into your favourites list while it's broadcasting in SD, it will disappear from the favourites list when 7 starts broadcasting a HD signal again. I think I read somewhere that this happens because channel 7 isn't really transmitting a SD-resolution (576i) program on the HD channel, but instead just redirecting your TV to the SD channel's signal (Ch 7 on the tuner) - or something like that! I haven't yet found a way to stop this from happening other than to not change to HD channel 70 when they're telecasting a SD program! I have to admit, it's annoying, but it's a minor glitch in what I believe is an otherwise outstanding TV. I intend to email Network 7 about this problem. Maybe if the problem is their fault and enough people hassle them about it, they might do something to fix it! - Mav (Australia)