Channel Surfing: Matthew Fox Talks "Lost" Final Season, "Reaper" Creators Check into "Dollhouse," Buckley Replaces Green on "One Tree Hill," and More

Welcome to your Thursday morning television briefing.

E! Online caught up with Lost star Matthew Fox in Monte Carlo, where he was on hand to attend the Monte Carlo Television Festival, and got the actor to tease some details about Lost's sixth and final season. Fox, who said that Lost will end with "an incredibly powerful, very sad and beautiful way," went on to say " "I think it is going to be very satisfying and cathartic and redemptive and beautiful. I've talked to Damon pretty extensively and every time I talk to him it's sort of surprising how moving it is just to talk about it." As for the beginning of Season Six, look for the action to begin with the reveal of just what happened after Juliet seemed to detonate the hydrogen bomb, with Fox teasing, "It's very surprising and probably fairly confusing initially to the audience... Like a third of the way in [to the season] I would guess we are going to [settle] in one time frame and it will be very linear—no more flashbacks, nothing. It will be on the island and sort of a final conflict to the end." Very interesting... (E! Online's Watch with Kristin)

Reaper creators Michelle Fazekas and Tara Butters have joined the writing staff of FOX drama Dollhouse, which returns for its second season this fall. The news was announced by Dollhouse writer Maurissa Tancharoen on her Twitter feed. Fazekas and Butters, described by Tancharoen as "awesome," recently signed an overall deal with studio 20th Century Fox Television. (Twitter)

Robert Buckley (Lipstick Jungle) has signed on to CW's One Tree Hill as a series regular next season, where he will replace Brian Austin Green, who has dropped out of the series after a deal couldn't be reached. He'll play Clayton, described as "a brash young sports agent who represents Nathan Scott (James Lafferty) and has become a close friend, ally, business partner and advisor to him while also enjoying the spoils that come from being a wealthy, handsome single guy." (Hollywood Reporter)

ABC has ordered five episodes of comedic dance competition series Let's Dance, which will feature celebrities learning to react famous dance routines, such as Patrick Swayze and Jennifer Grey's dance in Dirty Dancing, etc. Episodes will air live, with viewers asked to vote on their favorite performers, who will return for a final round. Series, based on a UK format that aired on BBC One earlier this year, will be produced by FremantleMedia North America and Whizz Kid. (Variety)

E! Online's Watch with Kristin catch up with True Blood stars Alexander Skarsgard and Stephen Moyer in a series of video interviews in which the duo spill a few details about Season Two of the HBO vampire drama. (E! Online's Watch with Kristin)

Jonathan Sadowski (Terminator: The Sarah Connor Chronicles), Keir O'Donnell (Sons of Anarchy), Rebecca Wisocky (Bones), and Kaylee DeFer (The War at Home) have been cast in Comedy Central's live-action comedy pilot Ghosts/Aliens, written by Phil Johnson and based on Trey Hamburger's novel. (Hollywood Reporter)

The Chicago Tribune's Maureen Ryan is reporting that Battlestar Galactica: The Plan is slated to air on Sci Fi (or Syfy as it will be known by then) in November and BSG spin-off series Caprica will launch in January 2010, according to Sci Fi president Dave Howe. Also potentially on tap: a BSG feature film, possible three or five years down the line. (The Chicago Tribune's The Watcher)

Universal Media Studios has signed two-year overall deals with Heroes writers Aron Coleite and Joe Pakaski. Under the separate deals, the duo will continue to write for Heroes, entering its fourth season this fall, and develop series projects for the studio as well. (Variety)

Viola Davis (Doubt) will guest star on the second season of Showtime's comedy series The United States of Tara. Davis, who is slated to appear in seven episodes of the Diablo Cody-created series, will play Lynda B. Dozier, described as "an uncoventional artist who plays a significant role in Tara (Toni Collette) and her daughter Kate's (Brie Larson) lives." (via press release)

Entertainment Weekly's Michael Ausiello is reporting that the season premiere of House has been expanded to two hours and will be directed by executive producer Katie Jacobs. (Entertainment Weekly's Ausiello Files)

MTV will begin shooting Season Twenty-Three of its venerable reality franchise The Real World this summer in Washington D.C. The cabler, which will premiere the current Cancun-set season on June 24th, will launch the Washington season in 2010. (Hollywood Reporter)

Warner Bros. Television has hired former NBC executive Erin Gough Wehrenberg as SVP of comedy development. She will report to Len Goldstein and will work closely with Lisa Lang and Wendy Steinhoff-Baldikoski. (Variety)

Poppy Montgomery (Without a Trace) will star in Lifetime Movie Network telepic Cinderella Pact, about a magazine editor with an alter ego as a reclusive columnist whose latest column about weight loss inspires her overweight co-workers to band together to shed pounds by following her advice. (Hollywood Reporter)

Stay tuned.