so that i can run debuggin tests.

while at work, i have some time to run tests and debug graphs. i'd like to use an external video source as the feed so that the graphs have something to connect to and work. i.e., i am using my usb2 WinTV-HVR 950Q capture device, but i have nothing to connect it to in order to a video feedback. if i don't have this then the graph doesn't work, so i can't run tests. so, i'm looking for something very cheap that can output a video signal (composite or svideo) that i can connect to the 950Q. quality of video and device is not important, but would like the size of the device to be very small, like a really small.

i am running win xp home on a netbook, thanks for any suggestions.