Scooby Doo
From Tardis Wiki, the free Doctor Who reference
Scooby Doo was a popular animated television character introduced in 1969 and featured in many TV series and films (both animated and live action) into the 21st century. Scooby-Doo was a talking Great Dane who joined a group of teenage amateur sleuths as they solved mysteries, often with a supernatural connection.
Larry Nightingale, upon visiting Wester Drumlins for the first time, compared the spooky mansion to "Scooby-Doo's house". (DW: Blink) The members of Torchwood 3 also mentioned the character (TW: Meat).