https://www.comedy.co.uk/tv/victoria_wood_midlife_xmas/episodes/1/1/
Reading the BCG-linked (front page) article on the Telegraph website...
After I'd finished weeping at the injustice of it all, I reflected that Victoria Wood not only has had a special TV night (in the last week) in her honour, but also that Christmas Eve is a pretty prestigious slot anyway. Also, she's getting a 'Making Of' spoof programme about this on the 30th December as well.
I suggest that she might count herself rather lucky to be getting this kind of high profile slot and send a thank you card to French and Saunders for retiring.
I am however looking forward to her wringing the last drops of comedy out of Bo Beaumont (aka Mrs Overall from Acorn Antiques). If it wasn't for Julie Walters I probably wouldn't plan to watch it, to be honest. But she's so good she can rescue even the most mediocre of sketches.