RS Davis on Instagram: "The click of those buttons is so distinctive. The Space Command remote was invented by Dr Robert Adler way back in 1956, and is called the first “practical” wireless remote. There was one before it, also invented by a Zenith engineer - Eugene Polley - called the “Flash-Matic.” It looked like a cross between a flashlight and a pistol, and worked using photorecievers in the corner of the TV to pick up light flashes from the remote. But any light in the room could mess it up