Get or borrow either a digital camera or a camcorder. Point your tv remote at your television. Press the volume up or down to verify that your television remote works. If it does control the volume, point it at your camcorder or digital camera and see if the little light in the remote is flashing. This will tell you if your digital camera or camcorder sees infrared. If it does see your tv remote's l.e.d., you can use it to check your RIO brand remote l.e.d... Any questions???