Sling's Slingplayer Mac beta moves to version 18.104.22.168, which gives it the Apple TV support I was waiting for. Yay! Aside from wanting to click on the Apple TV's UI instead of the Slingbox's virtual remote, it works fine over the LAN (video after the jump). The simplified Apple remote is easy to navigate over Slingplayer.
Kinja is in read-only mode. We are working to restore service.