The name of the dog in the series (a Pembroke Welsh Corgi) is Ein, a short form of Einstein.
Punch and Judy are characters introduced in this episode. Their names are references to famous puppets from a traditional English puppet show. The lead, Punch, is a puppet with a large nose and garishly dressed like a jester.
The license plate on the lab truck trying to recapture Ein reads "NC-1702", which is almost like Star Trek's U.S.S. Enterprise registration number of NCC-1701.