This is a Mystery Science Theater 3000 themed wall decal featuring the silhouettes of Tom Servo, Joel and Crow T. Robot made to appear like they're sitting a row behind you on the couch. They're not really though, it's just a $35 sticker for sale from Walkingdeadpromotion. Don't feel like putting it behind the couch? Put it behind the toilet. Just don't come crying to me when they all start ragging on your bathroom habits. I've been saying it for years, robots are mean.
Thanks to beeps, who agrees if you can ever avoid having someone sitting behind you during a movie, you go for that option.