You are kidding, right? Have you ever used Sling? Have you ever traveled for a job? Like, traveled overnight? Do you watch sports at all? Have a favorite team that you cannot get at the hotel in DC, let alone Mumbai or Sydney?
Hauppauge's solution? Oh, you must mean the quasi vaporware that is no longer supported, and which crashes 8/10 times (yes, I have used it).
Orb live? Which needs your computer to be actively running and hooked up to your TV video source? So I need to rewire my DirectTV box to my iMac in the kitchen--for "free"?
Eye TV? Yeah, works fine--if you have cable or OTA, which a lot of us don't, preferring satellite.
I think Sling is kind of slimy in many ways, but their product certainly fills my niche, and just works, unlike many of the solutions proposed by you and others who have absolutely no clue about this technology or who it is aimed for.
Sorry for the rant, but uninformed nonsense like this is ridiculous.