Could someone tell me how I find out the correct source number for each TV box. I'm trying to set up the recording of a program on the upstairs box from the app. The app is asking which source and coming up with the code number for both boxes.
How do I find out which code to use for the upstairs box when it asks for selected source please. Choices are DVR-DAC2 & DVR-87A9. No idea which is which.