It's an all new Trauma tonight and with Tyler finally out of the closet who knows what new storylines could be in store. Also, the you-know-what is about to hit the fan on GREEK, so don't miss the mid-season finale! Monday, November 2 8:00 pm How I Met Your Mother, CBS (30 min) NEW Barney (Neil Patrick Harris) and Robin experience their first fight and with no other options they turn to Marshall and Lily for advice. 8:00 pm Heroes, NBC (1 hr) NEW Can history really be changed? Hiro gets a chance to save Charlie as he travel back three years where he also comes across Samuel. Meanwhile Noah’s history with his partner is discovered. 8:00 pm Dancing With the Stars, ABC (2 hrs) NEW Seven celebrities remain as they try to master the art of dance in the show’s ninth season. Openly gay choreographer Bruno Tonioli returns to judge and openly gay dancer Louis Van Amstel gracefully partners with Kelly Osbourne. 9:00 pm Trauma, NBC (1 hr) NEW After working together for three years, Tyler finally came out last week to Boone. Hopefully, Boone can get over his ignorance as they work together to aid in a wedding disaster at sea and a speedboat collision. Plus Nancy takes a break to connect with her family. 9:00 pm Gossip Girl, The CW (1 hr) NEW Relationships are so difficult on the Upper East side as Blair befriends the new “It Girl” to makes Serena jealous and Nate is concerned about how far his grandfather will go to insure Tripp’s election. Elsewhere Olivia tries to stop Dan from hearing a comment she made on Jimmy Fallon’s show. Will Eric and Jonathan ever forgive Jenny for her Halloween antics or is there a new Jenny Humphery in town? 9:00pm GR∑∑K, ABC Family (1 hr) MID-SEASON FINALE Things have reached the breaking point on frat row as Evan and Cappie try to ease the rivalry between their two houses. Meanwhile Casey must choose between a Panhellenic VP position and helping ZBZ while Rusty and Dale fight over their science projects. 11:00pm Million Dollar Listing, Bravo (1 hr) NEW Poor Madison has to deal with a difficult client while Chad, with the help of a second agent, works on a Hollywood Hills house after he poses a crucial question to his girlfriend. Elsewhere, Josh ties to list his Malibu property but first must present a marketing plan to the owner of his Montana home.