Actor Allusion: Ransik (played by Vernon Wells) gets one in "Movie Madness" - in the episode's Chase Scene, he goes head-to-head with the Rangers on a desert road, driving a vehicle similar to the one Wez (also Wells) drove in Mad Max 2, and wearing a similar costume.
Executive Meddling: Eric was originally slated to die, just like his counterpart in Timeranger. The writers were skeptical that Fox Kids would allow this, so they filmed two versions of the scene: one where he died, and one where he lived. Fox Kids, as expected, vetoed the death. It worked out for the better, considering his performances in his two teamup appearances
Also, the originally planned ending had Jen staying in 2001 with Wes to keep the recurring theme going. But due to this trope this was thrown out the window, resulting in executive producer Judd Lynn quitting the show.
The team-up in the next season did have Jen return to the present, though it's never stated one way or the other whether she stayed this time.
Fearhog is voiced by David Stenstrom, who voiced King Mondo and portrayed Hal.
In Brazil, Trip's voice actor would go on to voice another Green Ranger, Xander.
Talking to Himself: Alex and Wes, both played by Jason Faunt. Justified as they're descendants of each other. Exactly what the relation is unknown.
Too Soon: As a series that regularly involves lots of property damage, it is believed that there was a lot of editing that invoked the trope after 9/11.
What Could Have Been: The writers of Time Force originally planned out a series where the Rangers travelled through time and fought across different time periods. Then they discovered that Mirai Sentai Timeranger didn't actually feature the characters actively travelling through time: they travel once to the year 2000AD and stay there. The writers would later indulge their desires for historical crimefighting in the two-part Trapped In Movie Land episode "Movie Madness", scenes from which would later be spliced into the opening sequence to imply that... yes, the Rangers actively travelled through time and fought across different time periods!
Alex was originally suppose to become the Quantum Ranger, but this was changed to Eric who was a more straightforward adaptation of his Sentai counterpart.
There was talk of a movie, but a possible SAG strike (which ultimately didn't happen) as it would have entered pre-production resulted in the studio opting to play it safe and cancelled it. This also cut an extra episode order, leading to a discrepancy in the capture of mutants (Ransik had one left in his prison in the episode 'Circuit Unsure,' yet the next episode opens with the prison empty and the Rangers declaring every mutant except Ransik recaptured).