Doctor Who: On This Day - 30th March

The Bells of Saint John aired for the first time 5 years ago (30th March 2013).

This episode starred Matt Smith as the 11th Doctor and was the first to star Jenna Coleman as Clara Oswald.

It aired on BBC One and was 45 minutes long. 

The Episode was written by Steven Moffatt.

Here is the synopsis:

The Doctor searches for Clara in London, where something dangerous lurks in the Wi-Fi signals.

 It was watched by 8.44 million viewers in the UK