ET's countdown to the premiere of The CW's new "90210" spin-off continues with a protest at West Beverly High in this Web exclusive clip from the original "Beverly Hills, 90210."

When the senior class of '93 learns that Donna (Tori Spelling) is not going to be allowed to graduate, they organize a walkout led by Brandon (Jason Priestly) and Steve (Ian Ziering). They are finally joined by Dylan (Luke Perry), who jokes that since he plans to attend the University of California, Berkeley, he needs to learn how to protest.

Before the launch of the new series, SOAPnet will celebrate the original Aaron Spelling show with a 24-hour marathon, starting at midnight on Monday, Sept. 1 -- with ETonline giving you a sneak peek of the episodes that will air!

Then, on Tuesday, Sept. 2 at 8 p.m., the all-new "90210," starring Rob Estes, Lori Loughlin, Shenae Grimes, Tristan Wilds and Jennie Garth will premiere with a special two-hour episode on The CW when the Wilson family moves to Beverly Hills.