It was alright in the beginning, but went downhill as the series went on, imo.
I actually liked it in the early days, but it should have been canned when its original cast started dying.
My least favourite comedy includes pretty much everything by Carla Lane except The Liver Birds and Butterflies. Also Mrs Brown's Boys is totally unfunny to me as was the Royle Family. The one with Robert Lindsey and Zoe Wanamaker.
A lot of those Northern British stand ups from the 70's were never funny to me e.g. Jimmy Tarbuck, Jim Bowen, Jim Davidson, Bernard Manning, Cannon and Ball, Little and Large.
I never found anything by Sacha Baron Cohen funny, although I think Philomena Cunk aka Diane Morgan, who does a similar thing, is hilarious.