Visit the TV network sites for the shows you want to see. Networks such as NBC offer some classic shows and many of their prime-time shows for free online. Most are only available for a limited time or may not be released until a week or more after the original TV airing.
Check out Hulu.com, which has many shows in every genre available for free online viewing.
Visit the official site for the show you want to see. Local news programs often have streaming video of their reports. Some networks make episodes available online only through the program's official site.
Log into MySpace. Networks, including Fox, utilize MySpace for online episodes of your favorite programs.
Use an online video service. Some services require a membership fee, while others like Joost are free. Most require a high-speed Internet connection and a software download in order to operate.