I stumbled across an 1977 episode of "It Ain't Half Hot Mum" the other night. I used to find it pretty funny. I expected to sit wincing a bit at the dated attitudes - but I found much of it laugh out loud funny. Especially entertaining was the scene where the concert party sit and watch in horror as a gawky new auditionee (an RAF man, played by Jeffrey Holland aka Spike from "Hi-De-Hi") shows them all up with his operatic singing, piano playing, tap dancing, trumpet playing, ventriloquism.... he can do everything and he it do much better than anyone in the concert party can.
Like all of those Perry & Croft comedies, the strength was in the ensemble cast and the detailed attention to the varied characters. Some of the individual performances may have been a bit ... 'panto'... but somehow the way they gelled raised the show above that. I always had favourites in those shows, though. In "It Ain't Half" it was Windsor Davies who was always the stand-out for me. In "Allo Allo" it was Officer Crabtree, and in "Hi-De-Hi" it was Gladys Pugh.