Never mind bootleggers releasing unaired Doctor Who episodes -- the biggest concern this week is none other than one of the BBC's own distributors. Fans who tried to watch the latest episode of the show ("Kerblam!") on Amazon the evening of November 21st found themselves watching "The Witchfinders" instead -- an episode that wasn't supposed to air until November 25th. Yes, the time travel jokes pretty much write themselves here. The io9 team notes that Amazon even had the subtitles for "Kerblam!" instead, leading to some unintentionally funny mash-ups of text from the future with the 17th-century past.