If you'd seen the "Doctor Who" season 2 trailers, you already knew that cartoon character Mr Ring-a-Ding would climb out of a cinema screen like some kind of malevolent Roger Rabbit. As well as being a great visual, it's a handy metaphor for the show's newfound disregard for the so-called fourth wall — in the modern Whoniverse, fictional characters acknowledging their audience is becoming increasingly standard.
In new episode "Lux", the Doctor and new companion Belinda Chandra travel to 1952 Miami, where an evil 'toon has literally captured moviegoers on celluloid. We soon learn that, when it comes to smashing the fourth wall to smithereens, Mrs Flood's asides to camera were just the tip of the iceberg…
