This and the other 2 episodes are part of Stewie Griffin: The Untold Story (2005)
Stewie was singing in the bar the M.A.S.H. theme suicide is painless when Brian and Stewie got drunk.
The title is based on the Rock and Roll song "Johnny Be Goode" written and performed by Chuck Berry that reached #8 on the Billboard pop chart in 1958.
When the guy in hell turns on the TV, he hears the same introductory music on every channel. It is the opening theme song from the sitcom "Who's the Boss?".