When the Terms and Conditions for winning the trip to the Slurm factory are presented, there is a short message written in "Futuralien." It reads: "The following species are ineligible: space wasps, space beavers, any other animal with the word space in front of it, space chickens, and the elusive yak-face."
We find out Bender's processor is a 6502, the same processor that powered the Apple II in 1978. The Commodore 64 used a variant of the 6502 processor, too.
The Professor and Leela are playing a variant of Scrabble. On the Professor's tile tray, you can see F-U-U-T-A-M-R. On the board you can see the tiles arranged to say "one eye", "prop only", "donut", and "Matt area".
Slurm posters were one of the first clues to deciphering the alien languages in the series and were meant to act in a manner similar to the Rosetta Stone for dedicated fans.
In this episode, Farnsworth and Leela play Scrabble on a multi-tiered board which, other than being a Scrabble board, is identical to the "3D chess" board which made frequent appearances on Star Trek (1966) and its spin-offs.