How do you program your RC 21914 remote to work your converter box?

To program your RC 21914 remote to work with your converter box, first, turn on the converter box. Then, press and hold the "TV" and "OK" buttons simultaneously until the red LED lights up, then release both buttons. Next, enter the code for your converter box brand (you can find these codes in the remote's user manual). If the LED blinks and turns off, the programming was successful; if not, try another code.