All I’m using is:
<object type="application/x-shockwave-flash"
height="660"
width="1150"
id="live_embed_player_flash"
data="http://www.twitch.tv/widgets/live_embed_player.swf?channel={channel}">
</object>
It’s what I’ve been using for a year and all of a sudden nothing will load. I get a black flash player and it doesn’t load Twitch’s player. The main Twitch site launches the player just fine. I can’t just embed anything outside of it.