Apple's TV box is getting more internet TV friendly with the addition of Sling TV, but that's not the end of the announcements today. Apple TV will be the first platform with Sling's new "content-centric" UI. A big addition is the "My TV" section, which lets users pick favorite channels or easily resume watching a particular show, as well as other overall improvements. Sling's deal with Apple also means it will let subscribers buy a 32GB Apple TV for $89 -- if they prepay for three months of Sling's $20/month service. It's an odd way to build in what amounts to three free months of Sling, but that's what it will be when it goes live here.