"Barney & Friends" wasn’t always "one big happy family." The ‘90s children’s show about a jolly purple T. Rex became a catalyst for hate, sparking numerous conspiracy theories that still linger today.

David Joyner, the man who played Barney the Dinosaur for 10 years, has a lot of stories to tell about what life was like in the big purple dinosaur suit. In a recent interview with Business Insider, ...