A cool homebrew app called PSP Universal Remote lets you use your PSP as a universal remote for many, many TVs and other devices. To use it you'll need PSP firmware 1.50, once you get it set up you can choose your target device from a menu and let loose your remote control shenanigans, that's what i'll call him next time i see him, shenanigans. PSP Universal Remote is a little feature-thin at the moment, but undeniably cool.