Amazing Happens on the NBA.com YouTube channel. Besides game highlights, you can see trick shots and PR events.The world leader in sports has a big presence on the world wide web. The ESPN YouTube channel gives viewers the opportunity to interact with and react to the top sports stories of the day.The National Hockey League also has a home on YouTube. And hockey fans are active on the page - the NHL has nearly 50,000 YouTube subscribers watching and commenting on the hockey videos.I was at a fight and a hockey game broke out... Something like that, right? This YouTube sports channel goes right into the serious action - forget the games, forget the plays, it&#39;s all about hockey fights.This is a sport, right? The UFC YouTube video channel is hugely popular, with more than 2000 videos and an active group of fans.