I'm a big fan of cooking videos on YouTube, from Cooking with Dog to street food presentations to Alton Brown. Lately, I've been into Gordon Ramsey's cooking channels on YouTube. I started watching full episodes of Kitchen Nightmares . As for the advertisements, on each episode, there would be around 10 ads throughout the video.  Some of these actually stop the video to play the ad while others have a little pop-up that blocks the bottom part of the video, as shown below. Also, I am usually too engrossed in the video to notice, but there are also occasionally ads next to the video, such as the car ad below.