The Verge describes the Boxee TV:
The new Boxee TV is an unassuming $99 device with a surprisingly radical feature: dual TV tuners. Plug the Boxee TV into your existing basic cable line or an HDTV antenna, and you’re watching television using a fast, fluid interface light years beyond anything from a cable company. Pay $14.99 a month and you get access to a second radical feature: a cloud-based DVR with unlimited storage that lets you play multiple shows simultaneously on PCs, phones, and tablets. You can even start a recording and watch it quasi-live from your phone with a slight delay. Not enough? Eventually you’ll be able to buy another Boxee TV and have those two tuners record to the cloud as well. Buy three Boxee TVs and you’ll get six tuners. There’s no limit.
I just got myself a Boxee box, and I’m kinda regretting it right now. I’m beyond the 30 day return period, and I think I sold my soul to my cable/internet provider already so it probably doesn’t matter. Also I’m in Canada so I’m sure things are completely different up here. However, it does seem like a really interesting bit of hardware.
You can check out the Boxee TV page for more details.