I don't know much about running RG59/RG6 cable in the house, but I'm out of cable splitters and I've just added a new HDTV. What kind of stores should I visit LOCALLY to pick up a splitter and what ...

Tomorrow I'm going to be running some RG59 cable to a room so I can hook up a TV in there for cable. My uncle has some bulk cable and some connectors lying around, so I figure I'll just make my own.