I don't know what slingbox is?
Seriously? Best invention since high speed internet. It lets you watch all your home TV from your computer, phone, ipad, etc. I bought one because I travel weekly for work and hotel TV channel options are spotty at best. Let alone killing time in airports. You just download the app to your computer (free) and I give you a code. Boom, you pull up a virtual remote and control my directv like youre sitting in my office.