Now the LED produces an infrared beam and signals the , well it's uh very simple , and signals the uh signals to the sensor on the T_V_ set ,
Yeah.
and the T_V_ set uh also recognises the the  the signal , and performs the assigned task.
So it is also why we have to have a button that says uh I'm now busy with a D_V_D_ uh if we had done that. And a button for T_V_. So