Yesterday, Larry King announced his retirement after a 25-year run on CNN's 'Larry King Live,' and David Letterman wasted no time in skewering the veteran TV host. Letterman served up the usual and expected punchlines, like King's age and penchant for suspenders, but also went the extra mile (perhaps one too far) by calling out King's recent divorce proceedings and allegations of infidelity. So, is David Letterman, whose own indiscretions became public late last year, really in a position to joke? Check out the video after the jump.