Free TV! w00t!
If you own an HD TV, (which most of the newer ones are these days,) you can use old school rabbit ear antennae to pick up the digital signals available in your area. As long as there are towers nearby, you can draw in the signals with no extra boosters, boxes, or gizmos aside from the rabbit ears.
Yesterday I did and experiment with my LG television: unhooked Comcast cable, replaced it with a $10 antenna from K-Mart and w00t!, there it was. Or I should say, there they were. 11 crystal clear HD channels, all for free.