Sling TV has been updating their applications recently with a more consistent design across their platforms. This includes a recent update to their Android TV app. The biggest change in this update is the channel guide.
Sling has been integrating its service with several different set top box systems, keeping Android TV as a major focus. They’re offering a deal on the Nexus Player: 50% off (about $50) when you pay 3 months of their TV service.