CBS’s first foray into the modern superhero genre is a huge hit.

The series premiere of Supergirl logged 12.94 million viewers last Monday night, scoring a 3.1 rating (10 share) in the adults 18 to 49 demographic.

In the Live + 3 ratings the show posted a lift of 3.169 million viewers (0.99 million 18 to 49’ers), putting the total who watched the pilot episode between Monday and Thursday just over 16 million people.

To put that in perspective, fellow DC shows Arrow and The Flash premiered this season to 2.67 million and 3.58 million people, respectively, on The CW. And FOX’s Gotham opened its second season with 4.57 million.

Supergirl is this season’s top-rated new broadcast series premiere both in viewers and in the 18 to 49 demo, according to CBS. It dethroned NBC’s Blindspot (10.6 million Live + Same Day, though a 3.1 rating has them tied in the demo), which premiered September 21 and also hails from producer Greg Berlanti. With a slightly bigger Live + 3 boost (4.59 million), Blindspot‘s series premiere tallied up around 15.2 million viewers.

Melissa Benoist stars in the DC Comics drama as Kara Zor-El, a Kryptonian who decides to embrace her destiny and use her powers to protect National City. The show settles into its regular time slot at 8 p.m. / 7 Central this week on CBS.

Keep up with the show all season long with SciFi Stream’s new Supergirl show guide!