Me neither until about 4 months ago because I wanted to watch some streaming programs (for free) and got a used Roku TV device.
All you need is decent broadband internet and wireless network, we use the Xfinity router (some models also have Ethernet) - and you have thousands of free channels and if you already had Cable TV you can watch a lot of those channels across Roku as well, for instance if you have the Weather Channel and activate it on Roku you get additional interactive features like local forecasts and radar.
Definitely worth the $30 and a little effort to connect some wires