What's the best way to run an additional cable to my family pc with Windows Media Center? I have a Dish Network setup with TV1 and TV2 running off the 722 DVR. I would like to run a cable feed to my computer, too. I put a splitter on the cable running to TV2 but it made the signal on TV2 very bad and I was still unable to get a signal on the PC. Any help/ideas would be much appreciated.