At the beginning of the Mathnet segment, "Scenes From Yesterday's Show" are shown, however, they reveal no genuinely useful information as to what happened in the previous episode.
Mathnet Announcer: Hans Ballpeen was tried and convicted of a 459, stealing a valuable diamond. He was sentenced to an appropriate number of years in state prison where he learned yet another skill: making little rocks out of big rocks.
Kane: You're a good mathematician Monday.
Kate: And you're a good citizen, Kane.
The Mathnet case is also avaiable in book form as Despair in Monterey Bay.
The mock American Express Card used in "The Colon" commercial parody has the unreal expiration date "13/86."
"Mathnet: The Case of the Trojan Hamburger" repeated in Episodes 165-170.
Kate Monday: You're a good citizen, Kane.
With this line, Kate Monday references the popular film, Citizen Kane.
George Frankly: (to Hans) [How did you] Fill my cup…to the brim?
Not long before this episode was shot, Brim decaffeinated coffee ran a set of commercials that encouraged cofffee drinkers to "Fill your cup to the rim with Brim."