None of them did much for me - except "On The Buses". Not for the stories (uninspiring) or the acting (mediocre to poor). It was the buses. The green "Luxton & District" buses (not the red "Town & District" ones crewed by Stand & Jack) shown in the shows were actually Bristol Lodekkas, operated by the Eastern National bus company. The depot used in the series was Eastern National's Wood Green depot in North London, where the company operated their route 251 from there to Southend-on-Sea.
https://www.wikiwand.com/en/On_the_Buses
I was (and still am) a bus enthusiast and I lived a couple of miles from Wood Green. I used the 251 frequently as I had family in Essex. The "Lodekka" is a fine bus and was revolutionary when introduced (though I won't bore you further with the reason why - you can find out if you're interested from the link below.) A number of them are preserved.
https://en.wikipedia.org/wiki/Bristol_Lodekka
Quite honestly, looking back, most of the programmes mentioned were dire. But as mentioned, that was what was churned out at the time.