Since Mosh linked to the woot.com sale of these, I'll cut and paste part of their wordy description:
"we feel that a more sober explanation of the Sling Media Slingbox AV is appropriate. Watch, like this: you hook it up to your TV, log in to the web-based player anywhere in the world, and watch and control your TV, TiVo, satellite, cable, or DVD player right there on your PC. Your office, your hotel room, your prison cell ? if you?ve got a broadband connection, your TV back home is at your command. Take your living room with you wherever you go, without the strain on your back and damage to your home that would result from moving your actual living room. You can even watch on your cell phone, if it?s fancy enough."
Edit: But after watching the vid on the Slingbox site, I think this is a MUCH better description:
Originally posted by: 40sTheme
Sweet! I can watch my alien on a lounge chair or a narwhal!