Apple has begun airing adverts demonstrating the iPhone's YouTube functionality on American television.

The adverts depict a user flicking through a selection of videos on the iPhone, before selecting one of a skateboarding dog. An announcer says: "You'll be surprised by some of the stuff you find on YouTube, but when it comes right down to it, maybe the biggest surprise is finding YouTube on your phone".

Ironically the video isn't available to watch on Apple's own website, but has already been recorded and uploaded to YouTube. Click below to watch the ad

Editor's Note: The ad is now up on Apple's website.