You wouldn’t think that David Letterman would make a great dad. Babies don’t really get curmudgeonly humor. Or irony, no matter how many times you patiently explain that it has nothing to do with a black fly in your Chardonnay.

WILD ABOUT: Harry Letterman

Yet, judging from this heart-warming if not exactly action-packed video clip from last night’s show, Letterman has won over his son, Harry (whom, you might recall, was targeted in a $5 million kidnapping/ransom plot in 2005). Dave’s interaction with Harry reminds me why I like his TV persona so much more than the inherently cheesy, one-dimensional, expedient Jay Leno. Dave appears to have a value system.

For his part, Harry seems quite expressive for a Letterman (excellent kiss-blowing form) and healthily undazzled by his show-biz dad. Though, of course, for all I know, they may go home and have surly staring contests with each other as they sullenly eat Mini-Wheats.

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