If you have Safari installed (on MacOS or Windows) and you have an 2nd gen AppleTV installed in your home, I heartily suggest that you install the just-released ClickToFlash 2.5.2 and MediaCenter 1.0. In addition to providing lots more control over when/how Flash loads, these two extensions make it super easy to be able to send embedded web videos right from Safari's browser window via Airplay, for playback on your AppleTV. This works very well on nearly all video sites I've come across. This combination of software has certainly changed the way I check out videos online... so much nicer being able to flick them immediately for playback to the big screen TV in the room I'm sitting in.... Some notes: You need to first enable the Airplay features via the extensions' preferences. Pull them up with a control click on any webpage. (There's a contextual menu item titled "ClickToFlash Preferences...") You identify your AppleTV (via IP address or hostname, in the General tab) and you enable the command to send via Airplay in the Media Player tab and/or the Shortcut Menu tab. Once set up, the new commands are available with a hover-click (left hand corner of the video) or a right-click to get the contextual menu. The preferences for Media Center are simply in Safari -> Preferences -> Extensions tab. Media Center also enables a "Stop" button in your Safari toolbar, so you can easily stop playback of the video you've sent to the AppleTV. Lastly... if it's not working with YouTube videos, make sure you're not in YouTube's "HTML5 Trial." Because that uses YouTube's HTM5 code and not Flash, so ClickToFlash doesn't kick in and MediaCenter doesn't replace the player UI. With YouTube using its default (Flash) config these extensions block the Flash, optionally replacing it with their own code, and an HTML5 media player that is Airplay-able. Once set up, it all just works so seamlessly and feels like a dream. Living room convergence at its finest!