You've installed Slingbox and gotten rid of some cable boxes. Yay! Now you want to watch a premium cable sports channel on one of your tv's that no longer has a cable box, but okay bummer because with Slingbox, that means having to wire up your computer to your tv. I don't wanna!!!
Now a brief summary of Chromecast and Slingbox:
1. Slingbox lets you watch tv on a big screen, controlled by your computer, from any cablebox in the house that has a slingplayer attached. But your computer has to be wired to your tv, because what you're really doing is using your tv as a large external monitor. Boo.
2. Chromecast lets you throw whatever is running in Google Chrome onto your unwired TV but you can't get everything you want running in Chrome or a Chrome app. For example, the premium sports channels.
So, you might think, just use Chromecast in conjunction with Slingbox, right? Almost. If you do that, all you get on the tv is a black screen. The two devices don't play so well together.
Use the Facebook version of Slingbox, and it will work. Just install the Slingbox app in Facebook, remember that you have to run Facebook in Google Chrome, then click on Slingplayer in your Facebook apps and sign in. Then just cast the tab to Chromecast.