EPG for use with VPN

What is the best EPG service to use with IPTV (keeping in mind the IPTV service in question will have a 100% ALWAYS ON VPN)?

I’m using ok2 and love the local channels so far, however the Sky, UK, and international channels are all missing information so I’m attempting to find a third party service with EVERY channel, or at least most of them.

I make my own m3u’s, but there doesn’t seem to be a way to make the XML EPG guides as all the show/program info is stored locally so it changes every day.