23 August, 2014 (according to information in Wikipedia, article "List of Doctor Who serials").
The first episode of Doctor Who Series 8 will be transmitted on 23 August 2014.
Doctor Who series 6 will start on the 23rd April 2011, with 'The Impossible Astronaut' :)
Doctor Who Series 5 Will Start On 13th March 2010
2011.
The first half of the series will start on April 23rd, the other half will start in September.
spring 2011
July 31
Doctor who started on the first Sunday of May 2010 on Prime. The new doctor is played by Matt Smith. The show starts at 7:30 and goes to 8:30.
April 3rd
The second half of series six starts on August 27th.
She will be in a few of the episodes at the beginning, her and Rory will be leaving mid series.
Yes, it has 30 episodes in series 7 and series 8 will start on the 18th of September.(: