J.D. (Zach Braff) gets a surprise visit from his ne'er-do-well brother Dan (guest star Tom Cavanagh, NBC's "Ed"), and becomes jealous when he and Elliot (Sarah Chalke) hit it off. Meanwhile, Turk (Donald Faison) feels guilty after betting Dr. Cox (John C. McGinley) $20 that surgery would save a patient's life. Judy Reyes, Neil Flynn and Ken Jenkins also star

After watching "An Inconvenient Truth" the Janitor (Neil Flynn) vows to save the world by becoming the Environmental Officer at Sacred Heart, but the staff soon finds out that his methods of motivation are a bit peculiar. Meanwhile, J.D. (Zach Braff) has to face his own inconvenient truth when his brother, Dan (Tom Cavanagh, "Ed") returns to town and tells him that it is time to "grow-up." Elsewhere, Elliot (Sarah Chalke) and Dr. Cox (John C. McGinley) debate over the hypocrisy of their practice. Donald Faison, Judy Reyes and Ken Jenkins also star.

J.D. (Zach Braff) dismayed when his brother (guest star Tom Cavanagh) Dan shows up with news of their father's recent death. Everyone faces the challenge of how to be sensitive to J.D. and stumbles over their words of condolence. Meanwhile, Turk (Donald Faison) has symptoms of diabetes but in his stubbornness, refuses to admit it or visit a doctor as Carla (Judy Reyes) wishes. Molly (Heather Graham) must employ some advanced psychology to force him to face the issue. Sarah Chalke, John C. McGinley, Ken Jenkins and Neil Flynn also star.

Get a glimpse of the LMN miniseries "The Capture of the Green River Killer." This story is told through the eyes of one young runaway, Helen "Hel" Remus, whose fate, bad luck and unwise choices lead to her encounter with the notorious serial killer. Leading the hunt for the murderer is Sheriff David Reichert, who becomes so entangled in the case that he's willing to risk his family and career to find justice for the slain girls. Surprisingly, it's a meeting with convicted serial killer Ted Bundy that may help Reichert finally find his man, but bringing him to justice will be anything but easy. Follow this incredible true-crime tale that's based on the book "Chasing the Devil: My Twenty-Year Quest to Capture the Green River Killer" by Sheriff David Reichert. Starring Tom Cavanagh, Amy Davidson, Sharon Lawrence, James Russo and James Marsters.

Brotherly love brings J.D. when his brother Dan comes back to town while Elliot and Carla begin moonlighting at a veterinary clinic; Tom Cavanagh Guest Stars. -- Dan decides to stay with J.D. for a while, since their mom's new fianc kicked him out, but after spending some quality time with him at the hospital, Dan isn't sure if he likes the cynical person his little brother has become. Meanwhile, Elliot (Sarah Chalke) tries to deal with her own problems of having a long distance relationship and decides to try moonlighting as a pet examiner with Carla (Judy Reyes) to save up money to go visit her boyfriend as Carla saves up for her wedding.

Tom Cavanagh uses a fart machine to lighten emotional scenes on the set of "Ed."

Tom Cavanagh talks about living and growing up in Canada.

Tom Cavanagh shares pics from his meatball eating contest with Rob Burnett.

Adapted from the novel by Michael Downing, Eric (Tom Cavanagh of the hit series ED, Scrubs, Eli Stone ) lives for all things hockey. Now in his thirties, he s managed to turn his stint as an ex- Toronto Maple Leaf into a full-time gig as commentator for sports TV. He s living the dream! But when Eric s boyfriend Sam (Ben Shenkman of Angels in America Law & Order, Canterbury s Law ) announces that they re to become temporary guardians of a young boy, Eric s comfortable world shatters. Enter Scot (Noah Bernett, Prom Wars, Girl s Best Friend, Last Exit, Gothika ) a recently orphaned, swishy 11-year-old sissy-of-a-boy and Eric s mirror opposite. Freaked out by Scot s joie de vivre, Eric and Sam gently nudge Scot away from scented hand cream and all things pink, towards a more acceptable pastime - hockey. But after Scot s disastrous first game, Eric begins to rethink the compromises he s made in his own life in order to be accepted.

Sibling rivalry takes on a whole new meaning in this offbeat comedy from first-time writer and director Sue Kramer. Sam (Tom Cavanagh) and his sister Gray (Heather Graham) are siblings who share a passionate interest in the music and styles of the 1940's, especially movie musicals of the era, and they've earned a powerful reputation on the ballroom dancing circuit as gifted hoofers with both talent and flair. Sam and Gray cross paths with Charlie (Bridget Moynahan), an attractive woman who shares their enthusiasm for old movies and retro styles, and is a fine dancer to boot. To the surprise of no one, Sam falls head over heels for Charlie, but so does Gray, which comes as a shock to nearly everyone, including Gray, who has never betrayed an attraction to women before. Charlie, however, naively fails to acknowledge the depth of Gray's feelings for her as a romantic triangle forms between Charlie and the siblings. Gray Matters also features supporting performances from Sissy Spacek as an analyst, Molly Shannon