I’ve noticed that American movies from the 1940s or 50s have their content “toned down” when it comes to depictions of sex or violence, even in romance where the lead characters kiss (they pause every 3 seconds) with zero nudity except maybe a bra & crime or noir flicks always involving the protagonist/s winning (like the narrative shows police must be victorious rather than admitting defeat towards criminals) to list a few.
faulty towers had that and it was british.
Might that be more about Fawlty himself? From what I recall of British television, it would not be unusual to have breasts and bums bouncing around your TV screen after a certain hour.
Here’s a little analysis from the Guardian, for which I did have to brave the search term BBC:
https://www.theguardian.com/tv-and-radio/tvandradioblog/2016/feb/02/flashing-the-flesh-a-history-of-tv-nudity-penis-mr-darcy
no idea. just know when they filmed the scenes it was two seperate beds.