This is kinda hard to sum up neatly, so I'm sorry the title is somewhat confusing. Basically, I'm wondering if it would be possible to hook up devices that would normally go to a TV to my computer and then watch them on that.
For example, hook up my Wii, and then have the video from that show up in a window (or fullscreen), so that I can use my monitor instead of my TV, and I can take screenshots of it. If this is possible, what kind of hardware would I need to take a video-in signal, and what programs would be able to have it stay in a window and/or run it in fullscreen? Also, potentially, record video.
I've seen some distros that are made to function as DVRs/media devices, but I'd prefer to keep my Ubuntu install that I have now. I've seen some talk of setting up TV tuners, but those seem to just receive broadcast signals, which isn't really what I'm looking for.