The WB network is reuniting former "Beverly Hills 90210" castmates Jennie Garth and Jason Priestly in this season's "What I Like About You."

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Luke Perry, another "90210" alum, beat Priestly to the punch -- doing a guest stint as Garth's boyfriend on "What I Like About You" last year, Zap2it.com reported Wednesday.

The WB show is -- in a way -- revisiting the past, Zap2it.com noted.

Perry's "Dylan" and Garth's "Kelly" were involved on Fox's "90210" and after they broke up, Priestly's "Brandon" moved in. The differences this time are the network and character's names.

Priestly's two episodes are scheduled to air in October.

Another primetime Fox soap alum, Dan Cortese of "Melrose Place," is also joining the show as a man Garth marries during a wild night in Atlantic City.