most of us don't have a choice. It's Comcast or no TV.
TV antennas have worked since the 1940s. With the digital switchover is the 2000s, people even further out can get a digitally-perfect picture in higher quality with less artifacts than any cable or satellite provider offers. And you probably have several times more TV channels available to you than you would expect, possibly several good ones that are not even carried on cable.
Since the 90s, direct broadcast satellite has been an option for the overwhelming majority of people. If you've got any way to put a tiny dish where it'll have a view towards the equator, you can get subscription TV while avoiding your local cable monopoly.
And today, with high speed DSL and FIOS, you may be able to get more content than you can watch, for under $10/month. Even if you choose not to go this route, the threat of it is likely to keep your cable co in-line and behaving themselves.