Doctor Who was first broadcast on BBC One at 5:15pm on Saturday November 23, 1963. On November 23, 2013, in celebration of the 50th Anniversary of this event the latest episode of Doctor Who titled THE DAY OF THE DOCTOR will be broadcast all over the world. Here is a collection of most of the official trailers that are out so far.
The first teaser trailer was this one.
The official trailer for BBC ONE is this one.
The version for BBC AMERICA is this one.
I advise you all to check out the official Doctor Who website by clicking here to stay up-to-date on the latest developments.