Cryptanalysis of the Enigma by the letters on the top row of the Enigma keyboard. So, "continuation of message sent at 2330" was represented as "FORTYWEEPYYWEEPY". "Cribs" were fundamental to the British approach to solving Enigma keys, but guessing the plaintext for a message was a highly skilled business. So in 1940 Stuart Milner-Barry set up a special "Crib Room" in Hut 8. Foremost amongst the knowledge needed for identifying cribs was the text of previous decrypts. Bletchley Park maintained detailed indexes of message preambles, of every person, of every ship, of every unit, of every weapon, of every technical term and of repeated
That Was the Week That Was news. Frankie Howerd also guested with stand-up comedy. Script-writers included John Albery, John Antrobus, John Betjeman, John Bird, Graham Chapman, John Cleese, Peter Cook, Roald Dahl, Richard Ingrams, Lyndon Irving, Gerald Kaufman, Frank Muir, David Nobbs, Denis Norden, Bill Oddie, Dennis Potter, Eric Sykes, Kenneth Tynan, and Keith Waterhouse. The programme opened with a song ("That was the week that was, It's over, let it go ...") sung by Millicent Martin, referring to news of the week just gone. Lance Percival sang a topical calypso each week. Satirical targets, such as Prime Minister Harold Macmillan and Home Secretary Henry Brooke