Last month BBC America showed a special called "The Doctors Revisited" and with it showed a story from the Doctor that they were focusing on.
The episode focused on William Hartnell and included the airing of "The Aztecs" with the special.
Well, now it's February and BBC America has announced the airdate for the February special featuring Patcick Troughton - Feb 24. (that's the last Sunday). The Broadcast time is 8:00PM.
With this special they will be airing "Tomb of the Cybermen"
Here is the story at the BBC America website (it's a short one):