Supergirl fell a ton from last season, though that's to be expected given it moved to The CW. I do wish it held up better from its first few episodes though; it showed that it is capable of pulling in top-tier ratings for The CW, and not just what Supernatural is doing. Its performance towards the end of the season was fine, but not great. Great performance in the first half of the season though, for the most part.
Grade: B-