N. F. Simpson which no episodes survive. His final series for television was the unsuccessful "Charley’s Grants" (1970), co-written with John Fortune and John Wells, starring Hattie Jacques, and produced by Ian MacNaughton (who produced "Monty Python’s Flying Circus"), which is also entirely lost. Plays followed, including a satire on advertising, "Thank You Very Much" (1971), and an effective three-hander for ITV, "Silver Wedding" (1974), directed by Mike Newell. Simpson’s highest-profile production for television was "Elementary, My Dear Watson" (1973), a Sherlock Holmes parody for BBC One’s "Comedy Playhouse" starring John Cleese and Willie Rushton. It has been screened several times at the
John Cleese Ronnie Corbett. This series was so popular that in 1966 Cleese and Chapman were invited to work as writers and performers with Brooke-Taylor and Feldman on "At Last the 1948 Show", during which time the "Four Yorkshiremen sketch" was written by all four writers/performers (the Four Yorkshiremen sketch is now better known as a Monty Python sketch). Cleese and Chapman also wrote episodes for the first series of "Doctor in the House" (and later Cleese wrote six episodes of "Doctor at Large" on his own in 1971). These series were successful, and in 1969 Cleese and Chapman were offered their