I have the PCTV PCI card, and the default resolution, for analog composite recording at least, seems to be 720 x 480. I can't seem to change this and it has some inconveniences. It's a larger resolution than I need it to be. Recording with this resolution puts a bit of strain on my PC. Also when I run it on Ustream, it only shows a portion of the screen because it's so large. Is there any possible way to make the resolution smaller?

what resolution would you need and for what purpose?

Which PCTV card are you using exactly and which software and version?