I had DirectTV and loved it. I never used it with WMC...I did use TWC...just make sure you hook the box up to your computer and then rerun the channel scan. With my TWC connection I had I had a fast enough connection that I could use a splitter on the TWC modem to the coax jax on my TV tuner card, reran channel scan and bam...I had cable TV on my PC. (It also had a remote)
Oh....you'll need a TV tuner card as well.