If you have a Roku channel, you may use the url(s) provided in your 'Stream Settings' section to display your live stream.

When configuring your Roku live feed, be sure to set your content-type as 'LIVE' and your stream-format as 'HLS'. If there is more than 1 url provided, it is displaying a url for each multibit stream you've setup. In this case you'll want to choose the url that is streaming your highest quality (or setup both as a multibit setup).