If you want to know why the TiVo company is in trouble, read this and this and if you're really interested, this. They all add up to a pretty simple fact: TiVo is being outflanked right and left in the field it pioneered. They simply have been unable to upgrade their product fast enough, and the current marketplace features many machines that are more attractive to buyers. (They are, however, finally rolling out TiVo to Go. Here's an article about that.)
But do not panic, fellow TiVo Travellers. Our machines still work. They just might not work as well as some alternatives. And yes, I know that's not the most comforting feeling in the world, especially since I felt it once before. It was about the time the shelves of VHS movies for sale at Tower Video became larger and the shelves for us Betamax users became smaller.