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?
It would seem so. Jimmy Fallon has a contract until 2021. 
Oh good for him! That's a good gig he got for himself! What network does The Tonight Show air on?
The Tonight Show Starring Jimmy Fallon
The Tonight Show Starring Jimmy Fallon is an American late-night talk show hosted by Jimmy Fallon, on NBC. The show premiered on February 17, 2014, and is produced by Broadway Video and Universal Television. It is the seventh incarnation of NBC's long-running "Tonight Show" franchise, with Fallon serving as the sixth host. The show also stars sidekick and announcer Steve Higgins and house band The Roots. "The Tonight Show" is produced by Katie Hockmeyer and executive
"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-