A teaser trailer for Series 9 of Doctor Who recently aired on BBC America.

The trailer, which aired on Saturday after Orphan Black, only lasts 10 seconds and shows no footage from Series 9, and instead focuses on the exterior of the TARDIS.

You can watch the trailer in the player, below:
[youtube:dbQHgmmnQeM]
+  Series 9 of Doctor Who will air this Autumn (likely September).

[Source: BBC America]