Downhill Battle's new effort is called the Participatory Culture Foundation, and they're building a replacement for TV.

We are building a free and open-source desktop television application tentatively known as DTV. Subscribe to a channel and video will download in the background (Channels are RSS feeds, so there's already dozens of compatible channels out there). When a new video arrives, DTV will let you know. It's that simple.

And it goes further: you can turn off auto-download for channels that you want to browse– pick things that look interesting and they'll go into the download queue. To keep disk space under control, TiVO-like caching will expire videos after you've watched them to make room for new stuff. Keep anything you like and build a video library. Integrated donating via PayPal lets you support creators directly.