The 60-second clip shows the number 13 in a number of iconic locations across Britain including Downing Street and the White Cliffs of Dover. The announcement will be made after the conclusion of the Wimbledon Men's Final.
Peter Capaldi now plays the show's "12th Doctor".
In a new post on Twitter, BBC America confirmed that following the Wimbledon Men's Final on Sunday, the network will be revealing for the first time the identity of this long-mysterious person. However, it is also met with the exact opposite reaction, as some fans were really hoping they wouldn't find out until they were watching the Christmas Special.
There has been speculation that the Doctor will switch genders this time and become a woman. Capaldi will pilot the Tardis for the last time in this year's Christmas special, after which the new star and new showrunner Chris Chibnall will take over the time-travelling adventure.
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For months speculation has run rampant over the identity of the next Doctor, with Kris Marshall now being favourite to take the sonic screwdriver reins. Close behind is Kris Marshall, who was favored to land the role earlier this year. He is also one of the older faces for the BT adverts.
But, as of now, fans just have to sit back and wait as (whether you are happy by this or not) by end of day Sunday we will know who the next "Doctor Who" is.
Whatever your choice of Time Lord catchphrase, Whovians rejoice - the thirteenth Doctor will be revealed in just two days time!