It looks like we'll be using two seven to watch the Star Wars Holiday Special on Friday.
Two Seven doesn't support playlists, and it requires you to create an account in order to join a room.
I don't like either of these things, but it's the only sync'd video playback option I've found with voice chat that actually ... works and doesn't need a browser plugin.
I'll probably kick the room open around 2pm eastern with some Space Patrol, and start the holiday special around 5:30.