The Magician's Apprentice (Doctor Who) episode is a blue-and-silver model as first seen in 1963. Clara, upon deducing the Doctor's location and intent, says "Do not go gentle into that good night", the first line of the titular poem by Dylan Thomas. When the Doctor spies Clara and Missy, he plays the opening notes to Roy Orbison's "Oh, Pretty Woman". The Doctor's playing electric guitar and teaching medieval people the term "dude" echoes the movies "Bill & Ted's Excellent Adventure" and "Bill & Ted's Bogus Journey", films featuring two rocker teens who travel back in time – in a telephone call box – and teach
Good Night, Dear Heart Horton, the new Red Scare, the new boogeyman for the masses" and the then-pending ballot initiatives in the states of Colorado (Amendment 2) and Oregon (Measure 9) that would have stripped gay and lesbian people of the right even to petition for gay rights legislation in those states. Mangels criticized "Quantum Leap" for its portrayal of Stephanie as a lesbian killer and for the lack of positive gay portrayals on the series. Noting the series's theme of "setting right what once went wrong", Mangels wrote that "Up Against a Stonewall" was his attempt to do just that. Good Night, Dear