One of the greatest guest stars in Scrubs, nay, in television history will make his triumphant return soon.

Tom Cavangagh told TV Guide he will make another guest appearance on Scrubs as J.D.'s older brother Dan before the final season's hourglass runs out of mortality sand.

Cavanagh confirmed the news by saying the "chances are 100 percent" that he'll get to go back on the show this season. Cavanagh will also star in the TNT show Trust Me with Will & Grace star Eric McCormick and Scrubs regular Sarah Chalke.

Stop! Don't touch the remote! Keep that finger away from the Power button! In other words, don't turn off your TV during TV Turnoff Week. If you do, you'll be missing one of the funniest comedies on television today.

I am talking about NBC's Scrubs. There hasn't been a comedy since Friends, not even Everyone Everybody Loves Raymond, that makes me laugh out loud like Scrubs does. I mean, how can you not chuckle while Chris Turk (Donald Faison) dances and lip-synchs to Bel Biv Devoe's Poison. Or snicker when Dr. Cox (John McGinley) goes on one of his 30-second rant on, for instance, why the purple Wiggle is always sleeping (for the uninitiated, the purple Wiggle is Jeff Fatt of the very popular children's television show The Wiggles). Or guffaw when J.D. (Zach Braff) has one of his surreal daydreams in the middle of a conversation.