The opening scene with the flash flood was filmed at Universal Studios.
None of the sliders ask "Why" the old timer is still on that Earth. Finding their timer implies Sliders landed and never left.
The Tolucans take their name from the Toluca Lake region of Los Angeles.
Nitpick: There is a visible boom mic when Remmy, Maggie, Mallory and Diana arrive at the camp.
Nitpick: It seems unlikely that the candles in the "Rembrandt Chamber" were able to stay lit for 400 years.
Nitpick: Mallory comes out of the vortex head first. However, in the next shot he is laying face up in some plants.
Nitpick: Mallory goes into the spatial fold first, but comes out second.
Trivia: The Statue Reads: "To those who dared to reach for the stars – In memory of the Intrepid Five of mankind's First mission to Mars. Lost to the Cosmos, their fates known only to God."
Both Rembrandt and Maggie mispronounce the name of the Colombian dealer Medellin Max. The town of Medellin, Colombia is pronounced as "Medejin" ("ll "is pronounced as a "j" sound in Colombian).
After being infected, Jill greets the Sliders with "Hello. Would you like to take a free personality test?" This is an allusion to another cult, Scientology, whose members try to recruit others by offering a free personality test.
Nitpick: Rembrandt says that there is 14 seconds left on the timer, but he doesn't activate it for nearly 30 seconds.