I just updated my HTPC Frontend Roundup because it is a quite good guide to alternatives if you don’t want a PVR where the content producers can delete whatever they want. From the update:

Tivo has recently made headlines as people have discovered a horrible functionallity that lets content providers delete shows on your box. My god, what a stupid move!

Kind of like:
You can buy this VHS tape, but you’ll hand over the keys to your apartment so that the content producers can come and take it when they decide that you shouldn’t be able to watch your recording anymore.

Original post: HTPC Frontend Roundup