Weird I tried something similar and it worked fine for me. You don’t really need to listen to an event, you can set a video id in the options using video parameter.
In the example below just replace the channel with video and put the value as the video id and it should work fine.
<script src= "http://player.twitch.tv/js/embed/v1.js"></script>
<div id="player"></div>
<script type="text/javascript">
var options = {
width: '100%',
height: '100%',
channel: 'lirik'
};
var player = new Twitch.Player("player", options);
</script>