Can't believe I'm the first to reply to this.
As a youngster always looked forward to Christmas telly. As was the case for for many Morecambe & Wise was always the highlight but there have been some great Christmas Specials down the years. Caught a couple of them this last Christmas on the satelite channels. The Whatever Happened to the Likely Lads special culminating with the fancy dress party was a treat as was the Rising Damp special featuring a not very festive Rigsby.
The Carry on Christmas specials were an opportunity to see the carry on stars on TV. I'll always remember Sid James as Santa with Babs Windsor on his knee.
I think there was also something which I believe was called Christmas Night with the Stars which featured an array of talent either singing or involved in comedy sketches.