There's one TV in our house that we can only use a window antenna with, unless we want to run around 50 ft of cable along the walls. This is what I'm waiting for to solve that problem:

Comcast will soon let its customers bypass the cable box and get Xfinity service directly on their television sets or streaming media gadgets.

So, basically a Comcast/Xfinity app on the Roku or Samsung smart TV. I'd heard before about this coming, but this latest news I've seen suggests it will happen before the end of 2016.