In 2009, The Jay Leno Show used an amateur comedy video that it had found on YouTube without permission. Despite the fact that Leno did not ask permission, Brian Kamerer and Travis Irvine were initially happy that he had used the video on his show. All that changed when NBC decided to take the duos video down because of copyright infringement. Yes, you read that correctly. NBC, which could be accused of copyright infringement for not paying or asking to use a video, took down the original posting of a video it essentially stole from Kamerer and Irvine due to copyright infringement.
I am not saying Jay Leno should not have used the video. In fact, anything that gives more exposure to up-and-coming comedians is a good thing, especially since late night talk shows rarely feature stand up comedians nowadays. However, NBC had no right to use the video without asking permission or compensating Kamerer and Irvine and definitely went to far with taking the video down.