My pcHDTV HD-5500 tuner card is dead, and it looks like it's my fault. Last week, I put another 4GB of RAM into my newest computer, apollo. While I was working, I must have bumped the card partially out of its slot. Since I have another HD tuner, I didn't even notice anything was wrong. When I reseated the card, the driver loaded but it generated a lot of IRQ errors when I tried using it. Damn.
On the plus side, 8 gigs of RAM.