How long was Jack Parr host of “The Tonight Show” (NBC, 1957)?

Jack Parr, the host of the late-night show “The Tonight Show” began his run on NBC July 29, 1957, and ended it March 30, 1962.

He followed Steve Allen, who hosted the show from 1954 to 1957.

The show was not live; it was taped earlier in the evening, as it is now.