The Economics of Tivo

I've been saying this for years...Tivo saves me money. Since I got the infernal box back in 2002, I've skipped countless ads, saved countless hours, and had a better quality of life. Good thing I got the box with a lifetime subscription... Now I'm a bit worried that the thing won't work after the digital conversion in 2009. If the box does become worthless, I'm thinking about either hacking it to install a network card and an HD receiver, or simply buying Beyond TV and putting it on a beefed up PC.