With 51 stunning images to colour, this out-of-this-world app is perfect for any creative Doctor Who fan. Tenth Doctor David Tennant married Georgia Moffett this year, who played his daughter Jenny in the episode “The Doctor’s Daughter.” Moffett also happens to be the real-life daughter of Peter Davison, who played the Fifth Doctor. Though it certainly maintains plenty of pint-sized fans to this day, the original concept for Doctor Who was specifically an educational program aimed at teaching kids about science and history. Doctor Who is one of the great success stories in science-fiction television. Since 1963, the BBC has aired more than 800 episodes (and one made-for-television movie) about The Doctor, a regenerating extraterrestrial Time Lord from Gallifrey. The Doctor travels through time and space in his TARDIS–which stands for Time and Relative Dimension in Space–and works to save humankind while armed with little more than a Sonic Screwdriver and his own esprit. Since Season 10 ended in July, we've been waiting for this year’s Christmas Special (“Twice Upon a Time”), which marks the regeneration of the Twelfth Doctor (Peter Capaldi) into the Thirteenth Doctor (Jodie Whittaker).

The BBC destroyed or wiped many episodes of Doctor Who in the 1960s and 70s for various reasons including saving space, leaving a huge gap in the series’ archives. In an attempt to recover the missing episodes, which mostly consist of First Doctor and Second Doctor appearances, the BBC and fans of the series continue requesting copies to be returned.While even the most casual of Doctor Who fans can probably tell you that The Doctor is a “Time Lord,” an ancient alien species that has the power to travel through time, the term itself wasn’t actually used until the series’ sixth season episode “The War Games.” His home planet of Gallifrey wasn’t mentioned by name until 1973. The TARDIS wheezes and groans during landing because Doctor leaves the brakes on. Also, the TARDIS has a six-sided control console because it was designed to have six operatives. Paul McGann is technically the longest-serving Doctor, though he appeared only once on television in 1996 (until last week!). Tom Baker is, of course, the longest serving on television, having starred in more Doctor Who shows than any other actor.

According to the BBC, the colors on the scarf are purple, camel, bronze, mustard, rust, grey, and greenish brown.