Rick says that Leo should give Playstation Vue a try for streaming online. For $55, it has cable over the internet via the Playstation 3 or 4 console, Roku, etc. There are a ton more channels than Sling.
Leo says it looks interesting but you don't really save anything over paying for cable or satellite. So from a cost saving cord cutting perspective, there isn't much point to it. It is worth a try if you want to cut the cable, though.