What do you think of these two "bottle" episodes that have proven to be more critically popular than RTD's increasingly self-indulgent finales? The deep mystery, creative scripting, and subtle terror in these episodes were more compelling than the growing swarms of computer generated Cybermen/Daleks/Toclafane marching on London, and are easily up there among the best hours of sci-TV ever, alongside TNG's "All Good Things", DS9's "The Die is Cast", VOY's "Living Witness", SG-1's "Window of Opportunity", Red Dwarf's "Back to Reality", B5's "War Without End", Lost's "The Man Behind the Curtain" and Farscape's "Die Me, Dichotomy".