DW 6.2: Let's Kill Hitler prequel On: August 16, 2011, By: Bill Young http://www.youtube.com/watch?v=ppi6n3IiQ4E& In: Homepage Feature Related posts: Only Fools & Horses begin filming 'prequel' The prequel to Doctor Who 7.2 – what happens before the WiFi goes bad? Doctor Who 7 finale prequel set to follow long-awaited Neil Gaiman ep this Saturday