The first episode of series 5 is called The Eleventh Hour.
Sarah Jane Smith first appeared in the Doctor Who episode "The Time Warrior" in 1973.
The first episode of series 3.
At right at the start of Smith and Jones episode.
Matt Smith first apears in the last episode of season 4, episode 18, "The End of Time (Part 2)" and returns in the first episode of season 5 in "The Eleventh Hour."
"The Time of the Doctor", a Christmas special on Dec 25, 2013, was the last full episode with Matt Smith as the Doctor. Matt Smith did a cameo appearance in the new season with Peter Capaldi as the new doctor in the episode "Deep Breath" aired in August 23, 2014.
Series 5 (Matt Smith's first Episode)
It was called 'the Daleks'
The episode is called Logopolis and is also the first appearance of Peter Davison (the fifth Doctor).
Sarah Jane Smith meets the Eleventh Doctor in the "Doctor Who" episode titled "The Sarah Jane Adventures: Death of the Doctor," which is the first episode of the fourth series of her spin-off show. This episode originally aired on October 15, 2010. In it, the Eleventh Doctor, played by Matt Smith, teams up with Sarah Jane and her companions to confront a dangerous alien threat.
Spearhead from Space.
"The Unearthly Child" was the first named episode, there was a pilot episode before it.
The Eleventh Hour.