There's a new 'Giant Bomb is now fullscreen' thing when you switch videos to fullscreen through flash 11.6.602.168 (Firefox). It's possibly the worst case of a totally pointless warning I've seen since the User Account Control prompt. That one's just a minor gripe, but I can't imagine the site gurus thinking it's helpful. A worse problem is that clicking a video pauses it, but does not unpause it - for that you need to use the controls. That's far from ideal, especially if you use a TV as your secondary monitor.
The new site video player is a lot better in some ways. I've really missed the ability to skip forty minutes or so into a video.