Dave12345 - I don't know what to tell you. Both of the address 1 and 2 code sets have been tested on a 301 and 508 and they do work. Are you sure that you have the latest software versions on your receivers from dish? The discrete functionality was added in the software updates that came in December. The reason that these codes are shorter than the universal set is that the universal set sent the same command to the receiver 3 times. The codes that I posted send the command 1 time to the receiver.

The codes won't work on the expressview receivers until their software has been updated to recognize them.