[vdr] Feeds for IPTV plugin

I spent awhile googling IPTV to see what could be used with this plugin. The big network sites like NBC and CBS came up and they do list shows you can "watch online". But I found none of the info that would be needed to configure the plugin to work with these sites. Other sites that came up where www.dishnetpc.com/ and www.direct-pctv.com/ which claim unlimited access to 9000 channels if you buy their $40 software. Something noticably lacking from those sites is a REAL LIST of the channels they give access to. And even if they where legit, there is nothing there that indicates they would work with vdr and the plugin.

So just what can be used with the IPTV plugin? Any links to sites known to work?