Sling seems perfectly fine from the aspect of me seeing my own recordings, just as it is okay to make a self copy of music or video to take along with me on a mobile device. I have already paid (through my TV provider) for the product.
Where I still have a problem with the sling from a legal viewpoint is the blackout rules for sports. Believe me, I am no fan of those rules but I cannot resolve the conflict in my mind that arises from potentially watching out of market live. For example, via Sling, I can watch the Orioles broadcast live in Chicago while the Orioles are playing the White Sox or the Cubs. I cannot do that by any other means (EI, MLB.tv) as the Chicago based station(s) own the live rights.
Yes, I know that it is MY programming from MY home, but it just opens up loopholes. With a solid connection, I can have a setup in my friends home in LA and watch LA programming.
I understand the value of local rights but personally would rather see anyone being able to watch anything anywhere (for a price that is fair to all) but I just cannot reconcile the legal portion of the sling remote viewing versus the other mechanisms.
And, yes, I know that it has been ruled legal. It just makes no sense. But neither does the SCOTUS ruling today on for-profit business religious beliefs when held against other recent rulings against discrimination for religious reasons by those same entities.
This isn't the loophole that you think it is.
If you are the one doing the streaming while away from your home, then it is fair use of your own programming that you pay for. IF, however, you let your friend watch in his home and you are not there... then you are violating the terms of service (though maybe still not technically a law violation).
Think of any object... A knife is legal to cut meat and spread jam on toast... but if you stab someone with it you have broken the law. That doesn't make the knife an object that needs a supreme court ruling to suspend operations. Existing laws cover inappropriate and unintended uses of things.
So... you using sling as intended for your own use is fine... unintended uses and you are on your own with the copyright law process if someone comes after you. As long as Dish/Sling does not encourage unauthorized use of their product, Dish has no liability if you choose to use it for something that you shouldn't.