I would never ever watch "Two and a Half Men" (willingly) unless Ashton Kutcher was naked on the show itself. I admit they've sparked my interest with this ad. Once you get over Jon Crier (sic?) being 60 and that kid being a little too much of a "Cliff and Kendall" to be naked in an ad, that is.
But seriously CBS, if you want me to watch: call the producers of "NYPD Blue"- there was a show that knew about nudity!! They had Dennis Franz in a shower scene!! (Although he's too much of a "Cliff and Kendall" to be in the shower).