I have most of the Carry On films, and watch them often. Carry on Camping is a favourite of mine.
Some of these old UK shows were poor and sometimes quite offensive. It is not political correctness that denies re-runs of On The Buses, Love Thy Neighbour or It Ain’ Half Hot Mum. It is the weak scripts, ham acting and predictable “jokes”. That and changes in what is acceptable.
I never watched any of the above. as I thought they were poor then. I did watch and laugh at Terry & June and Faulty Towers. Even Monty Python. Watching them now and they are often cringeworthy and rarely funny. Times and humour change.
I loved the American TV series “Soap”. Recently, I was re-watching some of the episodes and I couldn’t believe they made me laugh as much as they did about forty years ago, when I was a young teenager.
I think sometimes the predictability was part of the fun, sometimes humour is or rather was about anticipation, waiting for a certain gag or punchline, knowing that it was on its way.