What can you tell me about the Tonight Show with Jimmy Fallon? 
Well, I know that it comes on really late at night and the show was originally hosted by Johnny Carson. I don't know much other than that! Do you watch the show?
Yeah sometimes. The Tonight Show with Johnny Carson played from 1962 to 1992. 
Who took over after Johnny Carson? I think there was someone before Jimmy Fallon?
The Tonight Show was hosted by Jay Leno after Carson.  The show has been on the air since 1954. 
That's a long time! Is the show still very popular?
The show has been nominated for nine Primetime Emmy Awards, winning two.
On August 13, 2015, NBC announced that Fallon signed a contract to remain as host until at least 2021.
Background.
Background History.
"The Tonight Show" premiered on NBC in 1954 as "Tonight", hosted by Steve Allen. Jack Paar hosted the show from 1957 to 1962, but the show's longest-running and most famous host was Johnny Carson, who hosted the show for three decades and received six Emmys
"The Tonight Show Starring Johnny Carson", "Late Night with Jimmy Fallon" and "The Tonight Show Starring Jimmy Fallon". Its theme song was an instrumental version of "Everything's Coming Up Roses", and the closing theme was "So Until I See You" by Al Lerner.
History.
In July 1957, after the failure of "Tonight! America After Dark" (a news-oriented program first hosted by Jack Lescoulie and briefly by Al Collins), NBC reverted its late-