Lorne Michaels: I've seen the enemy, and it's Guitar Hero

  VS.

The late night TV world is about to be rocked by another major host transition. But Lorne Michaels says he's got bigger worries.

Taking part in the official "Late Night with Jimmy Fallon" announcement, Michaels (who will also play a role in "The Tonight Show" once his protege, Conan O'Brien, heads west) said he's less concerned by his competish on CBS and ABC (and perhaps Fox), and more worried about other distractions that are keeping viewers from tuning in to any of those shows.

"We're in a big fight in network TV," said Michaels, perhaps framing the theme for this week's upfronts. "The enemy isn't other network TV shows. It's cable and Guitar Hero."

-- Michael Schneider