Need the Name/Title of a British Movie/Play that runs on TV every Christmas in Norway. It is the story of a somewhat senile elderly English Lady and her equally elderly Butler. It is just the two of them at a dinner party for her guests that are imaginary and the Butler serves wine (and drinks the wine) for all the imaginary guests. By the end of the evening the Butler is very tipsy and I think the Lady is also. I would love to get a copy of the movie and need the name.

A lucky break...

I'm just back from New Year's skiing in Austria, where I got told about this comedy show that they watch every single year just before midnight

90. Geburtstag oder Dinner for One, Der (1963) (TV)

Sounds like the British version you want is one of many adaptations of this, so you should be able to find it using the title "Dinner for one".
IMDb Title Search