Supergirl is a TV show on American national television from CBS with an average rating of 3.3 stars by WatchTVOnDemand.com's visitors. We have 82 episodes of Supergirl in our archive. The first episode of Supergirl was broadcast in April, 2018. Did you miss an episode of Supergirl but don't you wan't that to happen in the future? Please set an alarm and add Supergirl to your favorites, so we can remind you by email when there's a new episode available to watch. Completely free: handy!