The schedule for the first day proper of Comic-Con has been released, with TV shows taking centre stage.

A packed day in Ballroom 20 on Thursday, July 18 begins with a screening of Lost star Josh Holloway's new hi-tech thriller Intelligence, followed by a preview of new CW alien-romance drama Starcrossed.

Beauty and the Beast, which premiered at the Con last year, will tease its second season in a panel featuring Kristin Kreuk, then Psych will take to the stage for a preview of its much-anticipated musical episode.

Steven Moffat and Mark Gatiss will appear in an afternoon session for Sherlock, which will return for its third series later this year.

The keynote session of Thursday in Ballroom 20 will be a 20th anniversary panel for cult hit The X-Files, with stars David Duchovny and Gillian Anderson, as well as creator Chris Carter, slated to appear.

Elsewhere on Thursday, Dexter will appear for its last ever Comic-Con session to preview its final season, which premiered last week.

John Barrowman will host a panel to discuss his own projects at the Hilton Bayfront, while an afternoon session will reveal storylines for upcoming issues of The Superior Spider-Man.