Pip in Pip

[GeorgeCaplan]

I know the merits (or lack of them) of PiP has been discussed on this forum

But here is my trivial question for the day

If you have a TV with PiP and a 1.1 BD player with PiP capabilities

If your TV is set to a broadcast as the main feed and BD as secondary feed, can you end up with PiPiP

Or
If your TV has BD as main feed with and broadcast feed as secondary feed can you end up with 2 PiPs or would 1 PiP be on top of the other PiP
(Can you reposition you PiP?)

Of course I can see any reason for doing this, other than trying it out once to see if it can be done.