Welcome to the Still Watching: Game of Thrones re-watch, covering classic episodes of Game of Thrones paired with interviews of the cast and crew leading up to the final season this April.This episode, Joanna Robinson and Richard Lawson discuss "The Mountain and the Viper" the eighth episode of the fourth season of Game of Thrones.Reek plays Theon, Arya arrives at The Vale, Oberyn's fight doesn't go well.The interview is with production designer Deb Riley, who explains why she hates "camp" scenes with fake snow and cryptically alludes to the most challenging part of the final season's design.