I think it's just a odd skit they love to play.
Japanese Wikipedia says that it's come from actual NHK talk show "YOU" (1982-87).
Music was come from promotion purpose 7 inch single of
12 inch single Hosono/Namco's "Super Xevious"(1984).
Previous album "Video Game Music" (released on April 25,1984) was
considered as first video game soundtrack.