There were some fantastic British comedies created in the 1970-1990 period and this would have to be in the top 3.
The production team have re-created work from PG Wodehouse as if it was especially written for Fry and Laurie.
Even the American episodes are carefully worked into the series.
Good content (modern writers please note), good actors, good production. Wonderful outcome!
Some people have criticised the quality of the picture. I found the Amazon version very good - at least it doesn't look like a kid with a little video camera has taken it- hence is unlike some modern shows.