After a rocky start, NBC and YouTube have reached a mutual agreement that allows YouTube to post NBC clips of the new fall season. Things were not always so agreeable, as NBC made YouTube pull the Saturday Night Live “Lazy Sunday” Digital Short earlier this year.

NBC’s 2006-2007 lineup will be featured on a dedicated YouTube channel that houses NBC’s clips. NBC is also asking YouTube visitors to create their own 20-second promo video for The Office – the winning promo will air on NBC in August.

John Miller, NBC Universal Television’s marketing chief, says “YouTube is the perfect online media partner to promote NBC’s marquee entertainment to their audience and explore new and creative ways to harness the power of viral video in a manner that respects copyrights.” A smart move, considering YouTube’s popularity – as many as 70 million videos are viewed daily.