I remember enjoying this on the radio, performed by Patricia Routledge and Prunella Scales. I’ve now discovered a television version, by Anne Reid and Maureen Lipman on Amazon Video, and am enjoying it just as much.
( I was actually looking for ‘ A Lady of Letters’ by Alan Bennett, another great performance by Patricia Routledge).
The radio ones are on You Tube, if you missed them.
Washing bio gel or quid in the drum