'Doctor Who' is about to ruin emoji for you forever

Doctor Who, like the best horror films, has always been at its strongest when it performs this one weird trick. The long-running BBC sci-fi show thrives on taking a single, simple, harmless, ordinary thing you see in everyday life (stone statues, showroom dummies), then tweaking it into a creature so terrifying (the Weeping Angels, the Autons) you will never in your life see that object the same way again. SEE ALSO: 'Doctor Who' fans will be thrilled and delighted by the latest Oxford Dictionary addition This Saturday, in the new Season 10 episode called "Smile," Doctor Who is about to perform that same trick with that most simple, harmless, ordinary facet of 21st century life: emoji. If you watch it -- and you should, because it's among the best episodes of new Who -- the smiley face at the end of your texts will take on sinister new meaning. SEE ALSO: About time: 'Doctor Who' to feature first openly gay TARDIS resident If you're an old-school Whovian like me, you probably rolled your eyes at that point in the Season 10 trailer when new companion Bill Potts (Pearl Mackie) encounters a robot with a flatscreen face composed of a smiley and a thumbs-up.