An IR Emitter An IR emitter (left) is pasted onto the IR sensor on this DVD/VHS player. The wire traces back to a Home Theater Master RF base station that picks up radio signals from the remote ...

Your new basic Roku TV remote will still work off an IR sensor, so all of the old rules apply where you need a direct line of sight with the TV. However, the voice-controlled alternative does have ...

The Samsung Galaxy S4 comes with a built-in IR blaster that turns it into a smart TV remote control through special software called WatchOn. By David Gonzales • March 14, 2013 ...