Basically that is all you need. The software is not expensive and you can claim your own from online shops. This is the fastest and easiest way to start watching TV on your PC and the best method. Certain type of software do not have any high or monthly fees but just a one time low fee.
You basically install the software following the instructions from the vendor and that it is. This is like installing Messenger, a game, an anti spyware software and so on. It is not different then the other software and not difficult.
Not all software offer same features and functions. For example some offer the ability to watch a thousand worldwide channels. Others may only offer channels in certain regions or countries. You want to find the best deal.
The software requires no special PC requirements. You do not need to upgrade your computer or buy more RAM for example. Most work on all versions of Windows and they come with the install and uninstall option so you can install the software on more than one computer if you wish.
These software do not allow you to watch TV channels only. Usually they allow you to watch thousands of channels like having a cable or satellite system.
You can watch TV in Full Screen mode of course and you have all the other functions that a TV offer. Some tips to make your experience better may include:
Get a TFT monitor, the larger the better. TFT monitors are getting cheaper nowadays.
Make sure your computer has no hidden errors or files known as junk files. These are unwanted files such as software you do not use, images you do not want or other files you do not need. Uninstalling unwanted software, removing files you do not need will improve your computer performance and speed. Make sure you remove only the files you are sure you do not need. Most often downloads from the Internet that you are not using.
Make use of a Registry Cleaner. You can download one for free. These are important cause they remove errors in your computer, which are not visible yet they make your computer slow. Use Google or Yahoo to find this software. You can also visit Yahoo Answers and ask the community to tell you which software they recommend.
Cable TV fees are very high nowadays and usually monthly fees. Watching TV on your PC is now very easy, comfortable and very inexpensive.