He eventually made his directorial debut on the Rowan & Martin's Laugh-In spin-off Letters to Laugh-In.
The highest-rated joke that day won the home viewer a prize (such as a trip to Hawaii), while the lowest-rated joke won a trip to "beautiful downtown Burbank".
American Academy of Arts and Letters | Rowan & Martin's Laugh-In | Physical Review Letters | Doctor of Letters | Texas Institute of Letters | Amarna letters | Royal Swedish Academy of Letters, History and Antiquities | Paston Letters | Norwegian Academy of Science and Letters | Letters Patent | letters patent | Arts and Letters | Persian Letters | Letters of a Portuguese Nun | letters | Laugh, Laugh | Laugh Factory | Athenian Letters | The Last Laugh | The Arts and Letters Club of Toronto | Royal Norwegian Society of Sciences and Letters | Post-nominal letters | Pontifical Academy of Fine Arts and Letters of the Virtuosi al Pantheon | National Society of Arts and Letters | Mississippi Institute of Arts and Letters | Look Up and Laugh | Letters to Laugh-In | Letters to Cleo | Letters Home: Correspondence 1950–1963 | Letters From My Windmill |