Beverly Hills, 90210 fans have long questioned the weird dynamic between twins Brenda and Brandon Walsh - and so have Shannen Doherty and Jason Priestley, who played them on the teen drama.

Beverly Hills, 90210. "Do your kids know or watch 90210?" Ripa asks. "Uh, yes. They know about it," Priestley shares. "My daughter for a while wanted to watch episodes of the show but only wanted ...