They're all on All 4.
Toast Of London - Series 3 Page 4
Maybe I'll give it a try then.
I don't know if there's such a thing as a Top 100 chart of all-time great sitcom episodes but, if ever such a chart were to be compiled and if at the same time there were to be any justice in the world, "Toast of London" Series 3 Episode 4 would surely be near the top.
TV comedy doesn't come much better than this.