CB: There isn't a show on TV that can sustain a massive launch like Supergirl's premiere. With a staggering 16 million viewers in the Live+3 (12.9 million in live alone), of course it was going to have a fall in week two.
And fall it did, to a Live rating of 2.2 with 8.9 million viewers. That's a drop of about 29% week-to-week, the largest drop of a new series this fall. Time-shifted viewing will be interesting, especially since the CBS series goes directly head-to-head with fellow WBTV and DC Comics adaptation Gotham over on Fox.