The latest thread in the EPG subforum has the answer...

http://iptvtalk.net/showthread.php?33526-EPG-for-US-and-UK-Channels&p=208930#post208930

It is working. Add it to your set-up and most likely it will be working with the next update, or clear the channels and guide data, shutdown Kodi and then restart it.

I suspect it will flesh out at the next update, but you could also try clearing the channel and guide data again.

I would leave it alone at this point and see if it fills-out at the next update. There's not much else I can suggest now. It is working fine here.

There could be some server, bandwidth or simulateous download issues, but I have no way to determine that.