Seen this behavior after a complete uninstall + delete registry, no restore backup, and just import previously recorded shows. ALL of the previous NOVA episodes were given episode 0 and title To the Moon.
After getting things all setup again, the episode titles and episode numbers seem to be fine for 95% of things. I am using a different guide provider than you and here is what I got from last night's Nova:
Title: Memory Hackers
Description: Researchers study how memories can be implanted, changed and erased.
Season: 2016
Episode: 4307
However, there are still some shows that do not get proper season/episode numbers from the guide service and keep defaulting to episode 0 with generic titles like "season premiere" and really generic descriptions.
I don't ever perform "get tv movie info" on tv shows because the info that comes from guide service is good enough and I'm not concerned with episode images (thumbnails are fine). I always do manually perform "get tv movie info" for movies and it usually works great.
Does anyone record "Castle" on ABC? Ever tried to get cover art from internet? Even searching without season/episode returns the strangest things