> "One idea was radio waves, but that was dismissed early on, says Taylor. “If you were in an apartment building, you might start changing the channel on the TV

> "One idea was radio waves, but that was dismissed early on, says Taylor. “If you were in an apartment building, you might start changing the channel on the TV in the next room as well as your own.” This reminded me how as kids in the 90s, the remote unlock button for our parents' car would set off our neighbor's car alarm if you were too close to them.