Tvheadend

I'm using TVH on a Pi 3b+

I'm using OTA Freeview EPG for the guide but no matter hard I trie I can't get the series info in the save file name. Is it that Freeview don't provide that info.

If that's the case what's the best internal EPG for the UK that provides that info and is there a guide to install an internal EPG. I've searched but can't find anything.