If you have an Xbox the ESPN app is piff and it has a lot of content on there. I watched the NBA playoffs on there, they even had the Finals games. Plenty of national televised games, and they even have clips from Sportscenter and their shows like First Take and other stuff. And it's FREE. All you need is a participating internet provider.
I'm not paying for cable anytime soon so that shyt is great for me.
TNT games get the firstrow treatment along with the local games that aren't on WGN, or WCIU. You can find alternatives, but it's hard with that weak ass blackout rule that the streaming services have on local market teams. Although I have heard that there is a work around for that.