December 15, 2008 7:56 am First Dog Offers Final Christmas Greetings Its that time of year again! Watch as the First Dog takes you on another holiday adventure! US & World Videos 2:58 Iran's president, others found dead at helicopter crash site, state media reports 5:30 Jake Gyllenhaal sings Boyz II Men During ‘SNL' season finale 2:17 Diddy breaks silence on Cassie assault video 2:03 Jennifer Lopez ‘likes' post about relationship issues amid Ben Affleck rumors 6:20 Get ready with Kelly Clarkson fan Q&A