EastEnders

EastEnders was a television show broadcast in the United Kingdom during the 21st century. In the summer of 2007, with the new "ghost" craze sweeping the planet, one of the killed-off characters, Den Watts, was brought back to the show in ghost form, using one of the ghosts which materialised during that period. It was later revealed as a new form of Cyberman. (TV: Army of Ghosts)

Evelyn Smythe, having left with the Sixth Doctor in the year 2000, had "foreknowledge" of 1990s EastEnders episodes, and made a bit of cash off this, betting for the correct outcome. (PROSE: Instruments of Darkness)

The Seventh Doctor claimed to have once had a dream in which all his old enemies chased him around EastEnders' sets. (PROSE: First Frontier)

The Tenth Doctor watched EastEnders, Ghostwatch and Trisha Goddard at Jackie Tyler's flat. (TV: Army of Ghosts)

EastEnders was noted for its depressing festive specials. The Tenth Doctor believed the phrase, "This is going to be the best Christmas Walford has ever had" was among the unluckiest sentences that one could utter. (TV: The Impossible Planet)

When Amy Pond and Rory Williams suddenly ended up in a doll's house, Rory suggested that the Eleventh Doctor was in an EastEnders-like place. (TV: Night Terrors)

Cross-overs with Doctor Who

 * Though other stories portray EastEnders as a television soap, the Brief Encounter story Mistaken Identity by Gary Russell and the Doctor Who mini-episode Dimensions in Time cross over EastEnders with the Doctor Who universe. A line in First Frontier dismissed that adventure as a dream.
 * The comic adventure Happy Deathday seems to take place, in part, in the EastEnders universe. This is later revealed to be a video game being played aboard the Doctor's TARDIS.
 * In the comic Tooth and Claw, the Eighth Doctor refers to "Albert Square", the location of the series (although he might have meant another Albert Square).

The Brilliant Book 2012

 * According to The Brilliant Book 2012, a book that contains non-narrative based information, William Shakespeare was the head writer of EastEnders in an alternate timeline.