Wow, now I know where the term 'clicker' came from. Funny that they mention sunlight changing the channel on the original optical sensor-based systems. Even in

Wow, now I know where the term 'clicker' came from. Funny that they mention sunlight changing the channel on the original optical sensor-based systems. Even in the 80s I could change channels on the VCR by strobing a maglight across the IR receiver. I guess the flashlight emitted enough IR or the IR sensor was not selective enough about what wavelengths it received. As a kid of the 80s (with a late 70s TV in the family), I always left the TV on '3' for the RF adapter from the VCR, and used the VCR (with its IR remote) as the tuner, to change channels. Of course, I still did most of my watching on my back, with my feet up against the VCR to change channels, and I could reach up with my leg to turn the volume knob on the TV.