With the US networks' upfronts completed, it's time for us TV writers to start picking out trends from the announcements. Is the crime drama dying? Is comedy 'back'? One trend for 2011's fall TV that's hard to miss is the return of a large handful of '90s and early 2000s TV stars who've been away from the small screen.

It's sort of like all the popular kids from high school went off to college, where they majored in things like the comedy-horror movie, highly publicized relationships and dubious art house films, and now they're back -- a little older, a little wiser and with way better hair. Welcome home, kids.

Sarah Michelle Gellar in 'Ringer,' The CW

Plot Summary: Gellar plays twins -- one a washed-up recovering alcoholic, the other a high-society wife. When wifey disappears under mysterious circumstances, Miss Intervention takes her place, only to discover her sister's life is way more messed up than her own.

Welcome back to TV, Sarah Michelle Gellar!

The 'Buffy' veteran's new series, 'Ringer' has landed on Tuesdays at 9PM following '90210,' which has moved to Tuesdays at 8PM. Coincidentally -- or maybe not such a coincidence -- 'Buffy the Vampire Slayer' aired on Tuesdays.

Mondays will be a Josh Schwartz block, with Rachel Bilson in 'Hart of Dixie' at 9PM following 'Gossip Girl' at 8PM.

Similarly, Thursdays are a Kevin Williamson block: 'The Vampire Diaries' at 8PM and 'Secret Circle' at 9PM.

Meanwhile, new reality series 'H8R' starts Wednesdays off at 8PM with 'Top Model' at 9PM. 'Nikita' moves to Fridays at 8PM with 'Supernatural' at 9PM.

'One Tree Hill' will return midseason -- for a final season -- along with reality shows 'The Frame' and 'Re-Modeled.'

"We're thrilled to present the most exciting primetime schedule The CW has ever had, comprised of shows that feature bold concepts, proven TV stars and up-and-coming, breakout talent," Dawn Ostroff, the outgoing CW president, said in a statement. "In just five years, we've built an instantly recognizable brand that resonates with both viewers and advertisers and is known for being smartly provocative, culturally current, emotionally authentic and a leader in digital and social media. This upcoming season will continue to establish The CW as a premier destination for our viewers, especially women."

Full schedule after the jump.