Credit: Adrian Rogers/BBC

How many U.S. viewers tuned in for “Day of the Doctor”?

Enough to break BBC America’s all-time ratings record. A total of 2.4 million viewers watched the Doctor Who 50th anniversary special’s first telecast at 2:50 p.m. ET on Saturday. That total rose to 3.6 million once including the show’s encore. Plus BBC America hosted simulcast screenings in 11 cities. On Twitter, Doctor Who overall generated a total of 1.8 million tweets, beating every show on cable for the week.

The company claims Doctor Who earned a Guinness World Record for the “largest ever simulcast of a TV drama” following the global release which saw the episode broadcast in 94 countries at the same time. The BBC released over the weekend that the episode was seen by 10.2 million viewers in the UK.

The cable network’s new new fantasy series, Atlantis, debuted to a more modest 838,000 total viewers.