The Flash's episode Tuesday night was called "Welcome to Earth-2," but it might as well have been titled "Welcome to Amazing Ratings." The episode, which took stars to the alternate universe, delivered the highest ratings for the series since December 2014 in total viewers and 18-49, and the best 18-34 ratings since the first episode of the entire series.
The 3.97 million total viewers came with a 1.6 demo (18-49) rating. That's a season high, and a 14% increase over last week. Fellow DC Comics (via Vertigo) series iZombie followed up with a .6 and 1.49 million, up a tenth from the previous week.
Agent Carter, up against iZombie in the 9pm hour, did a .8 on 2.86 million viewers, and fellow ABC series The Muppets led-into it with a .9 and 2.93 million, giving both those series a steady run from last week.
The Flash notably beat every series in its hour except the ratings juggernaut NCIS. Only NCIS: New Orleans and Chicago Fire also beat The Flash in ratings on the night, a huge victory for The CW in general and The Flash specifically. In network averages for Tuesday night, The CW placed third, beating both FOX and ABC in demo ratings, and beating FOX in total viewers, as well.
Thanks to high levels of buzz, the Live+3 and Live+7 numbers should bump things up considerably as well.