Vidgo is a Live TV streaming service that offers a good selection of channels, especially Sports, for a reasonable price that undercuts some competitors (mainly Hulu and Youtube). The interface is not great and the apps are not as reliable as other services, but if that's the kind of thing that doesn't usually bother you, or if you don't mind logging into individual network apps, it's a decent option. Oh, and if you're wondering about DvR? There is none, Vidgo only offers a 24-hour playback option, so you can only replay what aired the day before basically.
On the other hand, Vidgo allows simultaneous streams on up to three devices at once, and they have apps for Amazon Fire TV, Android TV, Roku, and Apple TV.