I have a Slingbox 350 and a Tivo Roamio Pro. I realize that the Slingbox 350 is "unsupported" with the Mac desktop app, but it works just fine. The only problem that I have with the app and the web app in general is the "SKIP" command does not work. The shortcut is supposed to be CMD+F on the Mac and that simply activates Fast Forward which is the hotkey (F). Clicking the Skip button on the remote works, but the hotkey doesn't work and it's so annoying because its the button that you use the most when watching something on DVR.
PLEASE take a look at this!!!