CBS get "punk'd" by Ashton Kutcher

Did CBS get "punk'd" by Ashton Kutcher? The actor used his massive exposure on the sitcom "Two And A Half Men" to stealthily promote his personal tech investments. Kutcher, who replaced Charlie Sheen on the show, plays Internet billionaire Walden Schmidt. In this week's episode, Kutcher's laptop was covered Getty Images in stickers for the tech companies Foursquare (the location "check-in" site), Flipboard (the iPad news aggregator), Hipmunk (the travel searcher), and Chegg (the textbook rental service). Well, it just so happens that those are all companies that Kutcher has invested in. Coincidence? CBS thinks not. It's not happy about the product placement because the companies got it for free. A lot of eyeballs saw those stickers. That episode alone drew 20 million viewers, a huge number, though down from the 28.7 million viewers who watched last week's premiere. Foursquare CEO Dennis Crowley was thrilled. During the episode, he tweeted a screenshot of the laptop saying, "Check out @aplusk