Harry Nilsson appeared on an episode of the Smothers Brothers's television show, Smothers Brothers Summer Show. Tommy Smothers introduced Harry by singing "I Guess the Lord Must Be in New York City.' Harry demonstrated the basics of songwriting by performing "Poli High."


Later, John Lennon and Harry Nilsson were ejected from the Troubadour for heckling the Smothers Brothers on stage.


The Smothers Brothers were a duo of American folk singers, musicians, and comedians consisting of siblings Tom and Dick Smothers. The brothers' trademark double act was performing folk songs (Tommy on acoustic guitar, Dick on double bass), which usually led to arguments between them. Tommy's signature line was "Mom always liked you best!" Tommy (the elder of the two) acted "slow" and Dick, the straight man, acted "superior". In the late 1950s and early 1960s, the brothers frequently appeared on television variety shows and issued several popular record albums of their stage performances. Their own television variety show, The Smothers Brothers Comedy Hour, became one of the most controversial American TV programs of the Vietnam War era. Despite popular success, the brothers' (especially Tom's) penchant for material that was critical of the political mainstream and sympathetic to the emerging counterculture led to their firing by the CBS network in 1969. One episode was left unaired.The brothers continued to work, both independently and as a team, on stage and television, and in films during subsequent decades.