Hey, It's That Guy!: Heather, the snowboard instructor and Tommy's intended date in the three-part "There's No Business Like Snow Business", is played by Sarah Brown, who also played Kaitlin Star on VR Troopers. Just about every kid watched those three episodes in the hope of a Rangers/Troopers crossover to no avail.
The Other Darrin: The Gold Ranger voiced by Brad Hawkins, from VR Troopers, for his first few appearances. As mentioned under "What Could Have Been", this was likely because the Gold Rangers originally was for the Gold Ranger to be Hawkins' character from VR Troopers, Ryan Steele.
Urban Legend of Zelda: "Scorpion Rain". Five one-minute shorts broadcast prior to Foxtel's screening of the final episodes of the season in Australia, created to better link the events of the finale to the feature film of Power Rangers Turbo. In actuality a hoax concocted by Big Name Fans Derik Smith, Joe Rovang, and Amit Bhaumik. Later subjected to Armed with Canon.
What Could Have Been: The Gold Ranger was originally planned to be Ryan Steele from VR Troopers, as Brad Hawkins provided the voice. This idea, along with Billy becoming the Gold Ranger, was scrapped in favor of the Triforian warrior Lord Trey.
Word of God: Bhaumik's "Forever Red" retroactively establishing that there was a final, unseen conflict between Rita and Zedd and the Rangers which led to a damaged Serpentera buried on the moon, and Zeo writer Jackie Marchand's "Once A Ranger" revealing Rita was pregnant with Thrax by the events of the season finale.
At different times, Bhaumik and Doug Sloan also went on record as saying that the ending to "A Season to Remember" is in-continuity.