These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Broken Base: The announcement of the upcoming live-action/CGI film. Some fans are already expecting the worst due to the track record of previous CGI-Live Action movies adapted from cartoon shows. Others are cautiously optimistic, taking into account that unlike most of those other films Disney is basing it off one of their own properties, which means they should understand the source material better. The risk of it delving into a Human-Focused Adaptation is somewhat lessened by the fact that the original show had humans already too.
Canon Fodder: Loads of it; for example, Gadget's past and the fate of her father has never been explored.
And what about what happened between Monterey Jack and Gadget's father? Or what Monterey Jack was doing before he met the Rangers (and how exactly he got those "cheese attacks," because they don't seem to me to be something he got from his parents [both of which appeared during the show's run]).
The Fat Cat Stomp from "Adventures in Squirrelsitting".
The Coo-Koo Cola jingle in "The Case of the Cola Cult".
Even some of the background music.
The extraordinarily catchy "The Best of Everything" from the pilot.
The NES Game's entire soundtrack. Zone J is particularly memorable.
Genius Bonus: Monterey Jack is obsessed with cheese. Monterey Jack is also the name for a blend of cheese from Monterey, California. This leads to a little bit of Fridge Logic when you consider that he's Australian, but named after a cheese from California.
Fridge Brilliance: Both of Monty's parents (Camembert Kate and Cheddarhead Charlie) are travelers and adventurers. Maybe they were in Monterey, California once and named him then.
Hilarious in Hindsight: The voice Jim Cummings uses when he plays Monterey Jack's father Cheddarhead Charlie on the episode "Parental Discretion Retired" is actually the voice Cummings used to play Monterey Jack after Peter Cullen left the show. "Parental Discretion Retired" was one of the early episodes that had Monterey Jack voiced by Peter Cullen.
In "A Wolf in Cheap Clothing", Jim Cummings voices a Tasmanian devil. A couple of years later, Cummings would become the voice for theTasmanian Devil (as in, the Looney Tunes character)
Monterey Jack talked a lot like Steve Irwin already before the latter was even known outside Australia.
Foxglove from "Good Times, Bat Times". Foxglove has an entire website devoted to her (and now dedicated to her voice actress, the late Deborah Walley).
Tammy and Bink from "Adventures in Squirrelsitting".
Queenie from "Risky Beesness".
Sparky from "Does Pavlov Ring a Bell?"
Geegaw Hackwrench from "To the Rescue, Part 3" isn't even really a character, he is only ever shown on a picture. Yet, despite his unknown fate and total personal absence, he is quite popular in the fandom.