Why hasn’t ‘Supergirl’ season 2 renewal happened? We investigate

Supergirl -Tonight, CBS is airing the penultimate episode of “Supergirl” season 1, and there’s one thing off-screen that is a bigger surprise right now than anything that we’re seeing on the show: The superhero show, starring Melissa Benoist as the title character a.k.a. Kara Zor-El has yet to be renewed for another season. The same goes for many CBS first-year shows, but given this one’s preseason hype and extensive press coverage, it’s one that you would certainly expect to get a green light earlier than others.

So what gives? Let’s look first at the claim that ratings have been a little bit disappointing given the hype. Is that true? Probably. Despite premiering to a 3.2 rating in the 18-49 demographic, “Supergirl” has averaged a 1.7 for the season. That number is probably slightly inflated by its numbers the first couple of weeks when curiosity was high, but quality was much lower than it is now. The show found its legs for the most part, but it’s hard to convince viewers who tuned out early to give it another shot.

Even with expectations potentially not met here for many, “Supergirl” still rates far better than many other shows. Its average easily surpasses many new CBS shows including “Limitless,” “Code Black,” “Rush Hour,” and “Criminal Minds: Beyond Borders,” and its average rating is better than such veterans as “Elementary,” “The Good Wife,” “Blue Bloods,” “Hawaii Five-0,” “NCIS: Los Angeles,” “Madam Secretary,” and “CSI: Cyber.” It’s barely behind such hits as “Criminal Minds” and “NCIS: New Orleans,” which are each averaging to date a 1.8 rating.

One other thing to consider here is median viewer age. If CBS is looking to diversify its portfolio, renewing “Supergirl” is a great way to do that. It shakes up its reputation as a network known for just catering to older viewers and fans of procedural crime shows. It also has the capability to have huge events happen like the crossover with “The Flash.”

We do think, one way or another, that the future of “Supergirl” is bright. Maybe there are considerations about moving the show to The CW, but we really doubt it. There’s too much value for the show on CBS, at least for now. Maybe there are also concerns about the budget, but once again, we doubt it. Sure, this is an effects-heavy show, but you’re not paying a Mark Harmon or a Thomas Gibson. These guys command enormous salaries on “NCIS” and “Criminal Minds.” It all should balance out.

In the end, the theory we’re going with over the lack of a “Supergirl” renewal for now is that maybe there’s a debate over episode count, or maybe the network just wants to wait until the end of the season to make a larger announcement about a renewal. We just think that if they’re going to bring back a show like “Elementary” that is not even averaging a 1.0 this season, “Supergirl” has to have another chance to fly again.

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