Forum Moderators: martinibuster
No need to write to AdSense support about it - I can give you an answer from our policy specialists here. :)
As long as you're displaying YouTube videos in a way that's compliant with YouTube's policies, and the content of the videos complies with AdSense's policies (e.g. no adult content, etc.), you're welcome to put AdSense on pages with embedded YouTube videos.
Keep in mind that the AdSense crawlers can only read the text-based content of your pages, so adding video won't affect your ad targeting, but we do believe that video content can enhance the overall user experience and site appeal.
-ASA
You're allowed to post YT videos on your adsense pages.
[edited by: Play_Bach at 2:46 am (utc) on Mar 10, 2011]