Except for the option of purchase and install PC TV card into your computer, as a user you also have another option which is to download software. Downloading software is way much easier than purchasing and installing PC TV Card.  With just a single purchase of the software you can access live streams and channels. Using software to Watch cable TV on computer is much cheaper too and is very convenient for notebook computer users. Both option provides you the same result but since PC TV Card might become expensive it is most beneficial to the downloadable software.