If I've learned anything
from British television shows on PBS...
The Big Bang Theory Season 6, Episode 3
Fine. Um, he's British.
The Big Bang Theory Season 9, Episode 8
It's actually British.
The Big Bang Theory Season 4, Episode 4
Very similar to C-4, British origin,
and that the connexion is perfect.
Money Heist Season 1, Episode 11
(in high-pitched, fancy British voice):
Oh, Duchess, look at me.
The Big Bang Theory Season 7, Episode 20