'BH 90210' premieres on FOX. Here's some trivia to get you in the mood.

"Beverely Hills 90210" is back!

Original cast members like Brian Austin Green, Shannon Doherty, Gabrielle Carteris, Ian Ziering and Tori Spelling are returning for a new series "BH90210." They said it's not a reboot because it's "a show within a show."

Having gone their separate ways since the original series ended 19 years ago, Jason, Shannen, Jennie, Ian, Gabrielle, Brian and Tori reunite when one of them suggests it's time to get a "Beverly Hills, 90210" reboot up and running. But getting it going may make for an even more delicious soap than the reboot itself. What will happen when first loves, old romances, friends and frenemies come back together, as this iconic cast – whom the whole world watched grow up together – attempts to continue from where they left off?

How much do you remember about the original show? Take one of our quizzes and find out. App users click here.

How Much Do You Remember About BH90210? Part 1

How Much Do You Remember About BH90210? 2

"BH90210" airs Wednesdays at 9/8c on FOX 46 Charlotte.