It's been a long time coming but it looks like the TiVo Rewards program is finally shuttering in a couple weeks. I just got my last reminder email and I spent my last 5,000 points (screenshot above is from my email).
Overall, it was a great program for someone like me that turned dozens of friends onto the device. I got a lot of nice stuff back from TiVo in return -- a couple iPods, a nice set of Bose noise-canceling headphones, and I used the points to get several free TiVo boxes for members of my extended family as birthday/xmas gifts. It's a bummer they shuttered the service but it was nice while it lasted.