Channel Hop: It went from ABC to NBC when the show was renamed The Bullwinkle Show.
Cross-Dressing Voices: June Foray as Rocky. Bill Scott also frequently played little old ladies, such as assorted fairy godmothers in Fractured Fairy Tales (typically if the fairy tale was starring a young maiden voiced by June Foray.)
The producers of the show rented out a small island in Minnesota, called it Moosylvania, and began a tongue-in-cheek statehood campaign. The "Moosylvania for Statehood" campaign was cut short when the petition reached the White House just as the Cuban Missile Crisis was unfolding.
Edited for Syndication: The Rocky And Bullwinkle episode intros originally had Rocky sailing past signage reading "Rocky the Flying Squirrel," followed by Bullwinkle adjacent to signage reading "featuring Bullwinkle the Moose." When it did a channel hop from ABC to NBC, Rocky's signs were replaced with "The Adventures of Rocky And Bullwinkle," rendering Bullwinkle's signs rendundant.
Enforced Method Acting: Jay Ward was having trouble getting William Conrad to read his lines fast enough, as Conrad felt that his voice sounded hysterical the faster he spoke. So one day, just before the recording session started, Ward walked into the recording booth and set Conrad's script on fire.
Missing Episode: The Dudley Do-Right episode "Stokey the Bear" did not air after its initial broadcast after Jay Ward was threatened a jail sentence over spoofing Smokey the Bear. It ended up being included on the first season DVD set.
The Other Darrin: Played straight for almost everyone in the 2014 short (most notably Tom Kenny as Bullwinkle), but averted for June Foray as Rocky (and even then his voice was pitched up in post because the then-95-year-old Foray had lost a little bit of her magic; needless to say, it was her final role before her passing in 2017).
Syndication Title: There are three syndication packages. Two 30-minute packages which use the "Bullwinkle Show" and "Rocky and his Friends" titles, and a 15-minute package, which uses the alternate title "The Rocky Show".
When aired on Nickelodeon, the show was called "Bullwinkle's Moose-O-Rama", while Cartoon Network reruns were titled "The Rocky and Bullwinkle Show".
International airings as well as the DVD releases title the show "The Adventures of Rocky and Bullwinkle and Friends", replacing not only the original "Rocky and His Friends" title ("The Bullwinkle Show" opening does not appear on any of the DVDs) but also "The Adventures of Rocky and Bullwinkle" title card for those segments.
What Could Have Been: In 1981, there was going to be a revival involving a Super Bowl parody. It was ultimately scrapped because the NFL didn't like the idea of parodying team owners and it involved Boris fixing the game.
If Disney had the rights to make a new Rocky and Bullwinkle series in 1989, we would've had this. It would've had new Rocky and Bullwinkle stories, new Peabody's Improbable History stories, new Dudley Do-Right stories, new Mr. Know-It-All segments and a whole new segment called Fractured Scary Tales, which would've been spoofs of famous horror films. Of course, if Disney did have the rights, then we wouldn't have gotten what was the end result of the replacement pitch, Darkwing Duck. This is because Disney held the video rights at the time- the TV animation dept. misconstrued that to mean they had all the rights (Universal had most other rights at the time- see for evidence the theme park rides with Ward-created characters, the 1999/00 adaptation films, and even the 1995 Energizer commercials with Boris and Natasha (which bore an MCA/Universal copyright).
A few years before Rocky and His Friends began, there was a storyboard idea called The Frostbite Falls Revue, which would've starred Rocky, Bullwinkle (then called the French-Canadian Moose), Sylvester the Fox, Flora Fauna, Blackstone the Crow and Oski the Bear. It would've involved them running a TV station in the North Woods.
Matt Groening, a Big Name Fan who counts the show as a big influence on the Simpsons, very nearly revived the show around the turn of the millennium. However, he decided to go with his little sci-fi show instead.
Early on, the show would have been just a 5-minute series titled Rocky the Flying Squirrel that would have been syndicated and aired on local kiddie shows. However, sponsor General Mills wanted a full half-hour show, resulting in the creation of various supporting segments.