I see .40 in the App Store now, and my devices automatically updated as they should!
Unfortunately it looks like I am still having an issue with the DUAL and the NO TUNER AVAILABLE message.
Notes:
1.) On my DVR the EXTEND is tuner priority #1 and the DUAL is priority #2
2.) On my AppleTV’s the opposite is true (I want them to use the DUAL for live steaming so it is priority #1
3.) I can now successfully start a show on an AppleTV and it uses the DUAL and the DVR backend shows the LIVE TV steam in use properly.
4.) If I open the same channel on another AppleTV the DUAL will blink the 2nd tuner LED for a while, then it will turn off, but both AppleTV’s will work for that shared channel
5.) If I switch one of the AppleTV’s to a different channel (and at this point I have 3 tuners available) I unfortunately get the TUNER NOT AVAILABLE message… there’s the problem 
Any thoughts on that?
–Geoff