I saw a few episodes of Love They Neighbour on UK Gold quite a few years back and it was hilarious - an incredibly awkward funny but the funniest thing was thinking that this sort of thing was deemed acceptable back then, when it wouldn't have a chance today. Sorry but watching two men calling each other "sambo" and "honky" IS funny, especially due to the fact that it would be impossible to air today. What could be funnier than something you shouldn't say.
It's sad to me that these days we can't have this sort of humour. The Major in Fawlty Towers going on about wogs, Delboy telling Rodney that after a nuclear war "there's bound to be a paki shop open" - these programmes are NOT racist, they depict an age where people like the Major and Delboys certainly did exist.
When we start to delete, and dub over these lines we try to bury OUR past - and that, throughout history, has never turned out well.