This device is a prank or gag that [Eric Heisler] came up with. It will intercept IR remote control codes and play them back after a bit of a delay. The example he shows in the video (embedded after ...

ROKU customers have been warned that they might fall victim to a cheeky remote prank at the hands of their neighbours. It sees the prankster switch off your TV from afar, while you're still watching - ...