Major Anthony Nelson house phone number was 783-7099 (Season 2 , Episode 24) , which later changed to 555-7231 (Season 3 Episode 9).
The scene in which a shrunken Tony is menaced by a giant house cat shamelessly rips-off a very similar scene in the 1957 movie ""The Incredible Shrinking Man". The episode also uses similar giant props to make the actor appear small by comparison.