Claim: Jack Paar was only host of The Tonight Show from 1950 to 1955.
Evidence: Jack Harold Paar -LRB- May 1 , 1918 -- January 27 , 2004 -RRB- was an American author , radio and television comedian and talk show host , best known for his stint as host of The Tonight Show from 1957 to 1962.
It has had six official hosts , beginning with Steve Allen -LRB- 1954 -- 57 -RRB- , followed by Jack Paar -LRB- 1957 -- 62 -RRB- , Johnny Carson -LRB- 1962 -- 92 -RRB- , Jay Leno -LRB- 1992 -- 2009 , 2010 -- 14 -RRB- , Conan O'Brien -LRB- 2009 -- 10 -RRB- , and Jimmy Fallon -LRB- 2014 -- present -RRB-.