Guardian (newspaper)
From Tardis Wiki, the free Doctor Who reference
The Guardian was a newspaper printed in the 21st century.
In 2014, Clara Oswald was holding a rolled-up edition of the Guardian, along with some other paperwork, when she met Danny Pink for the first time, in the staff room at Coal Hill School. (TV: Into the Dalek)
Sarah Jane Smith is reading this newspaper in the opening titles of K9 and Company.
