The 18th episode of Black Adder airs on BBC1, starring Rowan Atkinson. 
The Prince Regent is in trouble for having had a sexual dalliance with the nieces of the Duke of Wellington. When the Duke challenges the Prince to a duel, Edmund agrees to take his place. As the time of the duel approaches, each of Edmund’s plans for survival fall short…
written by Richard Curtis and Ben Elton
directed by Mandie Fletcher
music by Howard GoodallCast: Rowan Atkinson (Mr. Edmund Blackadder / McAdder), Tony Robinson (Baldrick), Hugh Laurie (Prince George, The Prince Regent), Helen Atkinson-Wood (Mrs. Miggins), Stephen Fry (Duke of Wellington), Gertan Klauber (King George III)
Notes: Fry returns to Blackadder after having been a regular in Blackadder II. He would return as a regular in Blackadder Goes Forth and for the specials. He again portrays the Duke of Wellington (among others) in Blackadder: Back & Forth.
Rowan Atkinson get a chance here to play opposite himself, in the dual roles of Edmund and his Scottish cousin, McAdder.
LogBook entry by Philip R. Frey