This news has to make TV execs perk up. CBS experimented with posting more than 300 clips from its  Late Show (Letterman) and the Early Show on YouTube, and got over 29 million views in about a month. More importantly, that has translated into about 200,000 new viewers tuning in to the TV programs on Letterman –you know the old ‘appointment TV.’

One more proof-point that new media doesn’t need to replace old media –just supplement and enhance it.