[mythtv] PIP with networked mythtv boxes

[Mark Chou]

I was pleasantly surprised to find that PIP seems to work with two 
networked mythtv boxes, each having only one tuner card.  The PIP comes 
from the second networked mythtv box, if the tuner on that box is 
available.

However, this PIP feature only seems to work on only the Master backend. 
  Apparently it doesn't work if you try this on a "slave-only" backend?

Is anyone else seeing this?

Thanks!