BBC channels, including BBC One, BBC Three and the CBBC Channel have been broadcasting a brand new trailer for The Wedding of Sarah Jane Smith recently, which contains brand new clips from the story. Being the only story from the third series to have had as much publicity because of the guest appearance from David Tennant as The Doctor, fans of both shows know that they are going to be in for a treat with ratings thought to reach higher than ever before. The thirty second trailer features clips of Sarah Jane Smith, The Tenth Doctor, Luke Smith, Clyde Langer, Rani Chandra, Peter Dalton and the Trickster. Sarah Jane is played by Elisabeth Sladen whilst The Tenth Doctor (who is making a guest appearance from Doctor Who) is played by David Tennant. Luke is played by Thomas Knight, Clyde by Daniel Anthony and Rani by Anjli Mohindra. Meanwhile the Trickster is played by Paul Marc Davies. The much anticipated episodes will air tomorrow, Thursday the 29th of October and will conclude with part two on Friday the 30th of October. Both episodes will air at 4:35pm on BBC One and for higher quality viewing on BBC HD (however this is not available to everyone, only to a few). You can watch this new trailer here.