A VGA splitter cable would permit an arbitrary number of analog displays to be connected, all showing the same image. A software hack could increase the drive strength of the DAC, allowing more analog displays to be driven from one DAC.
NV3x have only two DACs, so you can view only two independent images regardless of how many displays you have connected.
NVIDIA drives TV output decoder from DAC B. A software hack might enable both a TV display and a VGA/DVI display to be driven from DACB. The third display, being driven from DAC A, would show a different image.
I used to drive a Heisenberg, but whenever I'd glance at the speedometer, I'd get lost.