I'm sure that younger people have no problems with this, but some of us older ones yearn for the days when such things were more mentally challenging!
Things like "it ain't half hot mum", "are you being served", "steptoe and son", "magic roundabout", or perhaps even "til death us do part". Or maybe you fancy the high brow "black and white minstrel show"?
Yep, it was all so intellectual back then alright.
I think you're comparing chalk and cheese here. Yes, comedy shows were not produced with the intention of taxing the brain and, of course, at least a couple of the examples you give were found humorous in the days before the 'professionally offended' held sway.
I was thinking more about the 'Yob-TV' programmes such as Jeremy Kyle, Big Brother and several others featuring talentless 'celebrities'.
To return to the genre of comedy, I feel that they have run out of ideas and the present day 'comedians' whose idea of humour is aiming to include as many swear words as they can think of. Compare these to naturally funny men like Tommy Cooper and Les Dawson.