"The Day of the Doctor" is upon us. BBC America will celebrate the "Doctor Who" 50th anniversary special on Saturday, Nov. 23 at 2:50 p.m. EST.

In the trailer above, get a glimpse of Ten (David Tennant) and Eleven (Matt Smith) in action together, the return of Billie Piper as Rose Tyler and the Doctor's latest companion, Clara (Jenna Coleman).

In the preview below, see the Doctors compare screwdrivers and glasses and the three Doctor (Smith, Tennant and John Hurt) together in the TARDIS.

"The Day of the Doctor" airs Saturday, Nov. 23 at 2:50 p.m. EST on BBC America.

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