It's the first preview of the one-hour premiere of "How I Met Your Mother":
What we know: there will be a wedding. It will feature the odd color choice of orange and white. Barney and Robin will participate in what appears to be one of those synchronized-dance viral wedding videos (soooo "The Office" 2010, but with this show, maybe there will be a twist) It will be one hour long, and it will happen on what is shaping up to be one of TV's biggest nights of the year, September 19th, when the Charlie Sheen Roast, the "Two and a Half Men" premiere, and the premiere of "Dancing With the Stars" will all compete for viewers. Michael Ausiello got some hints about one of this season's (very Friends-esque) plot points: Jason Segel says Barney will be trying to get a peek at pregnant Lily's expanding chest. Do with that what you will!