I have been downloading running abstract fractals from utube and converting them to NBTV using Gary's application.
Although fractals contain much fine detail they look quite good on NBTV.
They look very impressive when seen on a large NBTV display,
like my Niptrix.
So if you are short on demonstratable material for NBTV, go abstract and put some running fractals on screen.
I prefer the fast running ones for NBTV .
Here's a 2 minute fast one to get you started.......
http://www.youtube.com/watch?v=eAcEKCj5jq8
Don't get dizzy.