Bells (Blackadder) marks the first appearance of the Bob/Kate and Flashheart archetypes that appear again in "Blackadder Goes Forth". Rik Mayall, who played Lord Flashheart, allegedly designed the character's costume himself. John Lloyd has said that Mayall virtually rewrote his part to feature "loads of jokes", which annoyed the writers, Curtis and Elton. It was the only episode of the series to feature location filming, at Wilton House in Wiltshire. The music performed as Blackadder courts "Bob" is Vaughan Williams' "Fantasia on Greensleeves". In 1993, in conjunction with Comic Relief, this episode was given away free on cassette tape with boxes of
Blackadder Goes Forth to miss a pigeon?" This episode sees Blackadder being sentenced to death by firing squad for the act, a reference to the capital sentences carried out under the laws of war in force at the time. In "Private Plane", after receiving word that Blackadder and Baldrick may have been killed when shot down over German lines, Melchett tries to cheer George up by showing him a life-size model (measuring seventeen square feet) of land recaptured by the British, a commentary on the high human cost and small physical gains achieved by attacks in the middle years of the war. Later