The television Sketch comedy series At Last the 1948 Show raised Feldman's profile as a performer. The other three participants, (future Pythons, Graham Chapman and John Cleese, and Future Goody, Tim Brooke-Taylor) needed a fourth cast member and had Feldman in mind. In a Sketch on 1 March 1967, Feldman's character harassed a patient shop assistant (played by Cleese) regarding a series of fictitious books, achieving success with Ethel the Aardvark Goes Quantity Surveying. His character in At Last the 1948 Show was often called Mr Pest, according to John Cleese. Feldman was co-author, along with Cleese, Chapman, and Brooke-Taylor of the "Four Yorkshiremen" Sketch, which was written for At Last the 1948 Show.