BBC America’s Doctor Who Season 9 premiere delivered 2 million total viewers and 1.1M adults 18-49 in L+SD for its biggest season premiere ever, according to the network and Nielsen.

All demos were up from the Season 8 average, with the most significant increases in the younger demos, up +186% in P12-24 and +161% in P18-34. The episode also was No. 1 most social drama of the night based on ListenFirst’s Digital Audience Ratings for Television. It also was the #1 TV brand on Tumblr, the #1 drama on Facebook, Twitter and YouTube and the #2 drama on Instagram, following The Walking Dead.

In Peter Capaldi’s second season at the helm of the TARDIS, the series sees the Doctor and Clara Oswald (Jenna Coleman) going on a journey that takes them to deadly alien planets, creepy underwater bases, Viking villages, a global Zygon uprising, and through hidden alien dens.

The new season is written by Steven Moffat, Toby Whithouse, Jamie Mathieson, Peter Harness, Mark Gatiss, Sarah Dollard and Catherine Tregenna; directed by Hettie Macdonald, Daniel O’Hara, Ed Bazalgette, Daniel Nettheim, Justin Molotnikov, Rachel Talalay; and produced by Tracie Simpson, Derek Ritchie, Nikki Wilson and Peter Bennett. Doctor Who is a BBC Cymru Wales production for BBC One, co-produced with BBC America.