You might also try the wireless Vulkano Flow that allows you to control your home TV/DVR. Kind of a better/ easier-to-set-up competitor to Slingbox (my opinion after owning both).
I've got mine set up in our spare bedroom so I don't have to fight over the remote with the wife while I'm on the road. Haven't missed a playoff or important game in a couple of years. It's also great on those 4-day layovers in Osaka in January.
You can pick one up for about $100 on-line.
Amazon.com: Vulkano Flow Mobile Device for Viewing TV on the Go: Electronics

The Vulkanp Flow doesn't have an internal hard-drive, but the Lava has a 4 GB drive, and the Blast has a 160 GB internal drive. I opted for the Flow since I've got a DVR at home.