Zenith Space Command (1956)
The first widely used TV remote control had four buttons (power, volume, channel up, channel down) but no batteries; press a button, and a tiny hammer inside the remote would strike an aluminum rod, transmitting an ultrahigh-frequency tone to control the set. The Space Command ruled the living room for more than 25 years before being replaced by remotes using infrared technology. And thus a nation of couch potatoes was born. For more information, see Zenith's remote control history page. Photo courtesy of Zenith.
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