Need some tech help on setting up an older Smart TV. My parents have an older smart tv but it was one of those that was bleeding edge when it was bought but now I can't add apps to it. It has 3d and all the ports but it doesn't have the ability to add some of the newer streaming services. I want to set them up so they can have ESPN+/SECN+ for all the UT sports. So my question is.... Apple TV, Roku, Fire Stick? What should I get them? I don't need subs - just a method of getting all the apps on their tv so they can watch subs I bought for them.