Hi Claire,
i'm having the exact same problems. TV screen is black however there is still sound. Also sky HD customer. It's been happening now for a few hours and doesn't seem to be showing signs of stopping. We have previously repaired our tv when it clicked over but wouldn't turn on from standby. This is a new problem. Don't think i will be buying samsung again!!
Have you managed to sort your TV out?
Thanks
Gemma
Gemma
April 2010