Anyway, gonna rewrite the sketch so it accepts text input from the serial port.. making it a nice little "teleprompter" or video dongle. Once I started thinking about it, a barebones arduino (chip, regulator, resonator is pretty close to all that's needed) that functions as a serial-to-videotext generator/marqee for under $10 is a damn cute project..
I think it's already been done, but if not, I see a one-chip serial terminal with ntsc out in the not too far future...
Here's a gallery with the setup running...