BBC America is doing a Doctor Who Takeover for the week surrounding its Doctor Who: The Day of the Doctor 50th Anniversary special on November 23rd (see "Global Simulcast for 'Doctor Who'").  Programming will include marathons showcasing all of the first ten Doctors, and the ninth, tenth, and eleventh Doctors, and a number of new specials covering the history of Doctor Who:
 

• Tales from the Tardis, a documentary program about the show’s history
• The Science of Doctor Who with Brian Cox, which discusses the science behind the show
• Doctor Who Explained, interviews of cast members from the show’s 50 year history
• An Adventure in Space and Time, a drama about the launch of the original Doctor Who.
• The Graham Norton Show, the BBC talk show, with Matt Smith and David Tennant as guests.
• The Doctors Revisited – The Eleventh Doctor, interviews and more about the Eleventh Doctor.

 
The special programming kicks off on Monday, November 18th, and runs through the following Sunday.
 
A new trailer’s been released, embedded here.