Whenever this remote’s battery is loose for a while, it forgets its programming. So, here it is:
For computer, use the TV setting. Press 1 and 3 for a few seconds, then when the light turns on, enter 0677 as code.
For my amp, you have to set the aux mode for a second TV. To do that, press 1 and 6 for a while. Then press 9, 9, 2. Then press TV, then aux. Next step is to enter the TV code. Press aux, then hold 1 and 3. Enter the following code: 0064.