I have no idea what the inside joke is with regards to the Title Card:
Cougarton Abbey. Seriously, no clue.

It's probably something simple but for whatever reason it's not regisering with me. I'm sure that when I'm clued it, I will no dobut do this ----->

As for the episode, it was good. The gag about who could keep their white shirt spotless, although fun, was a bit predictable. It's a no brainer that whoever starts the bet will end up losing at the end. So the wine splash was foreseen a mile away. Still funny though.