FWIW, I took a look at what is different about these commands from the others. This is the older and more common Dishplayer IR protocol that has a carrier frequency of ~58KHz. These commands look like they will be universal commands for all units. So if you have a wired IR distribution system or RF IR repeaters and multiple units I think they will turn all units off.
The second minor and probably inconsequential difference is that the normal commands in this protocol repeat as long as the button is depressed and these appear to have exactly 3 repeats of the same command.
There are 16-bits of data in this protocol: The first 6-bits are the command(000001=On; 100111=Off), 5-bits of unit code, and the final 5-bits that are always all zero's except in the scroll-up and down commands and some of the transport commands in the PVR's.
In the discrete commands, the 5-bits of unit code are all Ones, where normally 00000 is system address 1, 10000 is System address 2, 01000 is System address 3 etc.
This is all based on 0017 00a5 being the Zero and 0017 0061 being the One.
