UK residents can now buy the latest Doctor Who special, "Planet of the Dead", at Apple's iTunes store. The programme can be purchased in either high definition or standard definition here.
All other new series episodes and many classic series serials are also available at the UK iTunes store. The US iTunes store has several classic stories and new series episodes through "Journey's End".
"Planet of the Dead" is scheduled to be released on Region 2 DVD on June 29, 2009.