I've always loved the scene (from E2) which ends with...
[The telephone rings, Blackadder picks it up.]
Edmund: Hello, the Savoy Grill. Oh, it's you..... yes..... yes, I'll be over in 40 minutes.
Baldrick: Who was it then sir?
Edmund: Strangely enough Baldrick, it was Pope Gregory IX, inviting me for drinks aboard his steam-yacht "The Saucy Sue", currently wintering in Montego Bay with the England Cricket team and the Balinese goddess of plenty.
Baldrick: Really?
Edmund: No, not really. I'm ordered to HQ. No doubt that idiot General Melchett is about to offer me some attractive new opportunities to have my brains blown out for Britain.