That episode of Hornblower is called
The Frogs and the Lobsters. It's all a bit of jolly fun in the usual style.
There's a little of this...



And a bit of this...


Of course, some of this...

And then as an added bonus you get...

..."Nicole" from those 90s Renault Clio adverts! She was all the rage back then. Appearing here as H's mandatory bit of totty (and it looks like she's just told him she's up the duff, she's already told "Papa" and H is wondering where the nearest exit is in that picture).
Worth a watch. The fellow playing the French aristocrat is very annoying, but then again I think he's meant to be.
Hornblower isn't BBC, by the way. It was on commercial television (but that's not important

).