Hi jamesmccourt - this post was in the incorrect community, so I moved it here, as it appears to be related to your SlingCatcher (not SlingPlayer for iPhone or HDS-600RS per se). Please be sure to post your product questions in the correct sub-community so the moderators and other Sling users here can better help you!
As far as the buttons not matching up, I honestly don't know, as that is not a hardware combination we've tested. But I will look into this further and leave this discussion open to see if any other users might able to help in the meantime.
I appreciate you doing some research for me. I can still use the colored buttons on the virtual remote so it isn't the end of the world but everytime I want to delete shows from my Slingbox DVR I need to do it online or on the Slingplayer application- not on my Slingcatcher.
Also, because the colored buttons on the Slingcatcher don't work for me I can't scroll quickly through the Freesat TV guide. On the HDS-600RS the yellow and blue buttons allow you to move forward by +1 day or +2.5 hours and the same in reverse. Quite a good feature!
OK...sorted it! The problem was I was expecting the descriptions of the buttons on my slingcatcher to match those on my HDS-600RS. In fact all you see are the words 'custom 10', 'custom 11' etc.
I had to basically go to the guide and try each custom function until i worked out which matched the functions on the HDS-600RS. It still says 'custom' when I press it on my Catcher and displays that oncreen but the function now works!
Basically- it's perfect. I hope my Catcher never breaks! And the HDS-600RS is compatible with the Catcher no matter what Slingbox say.