Check the station's website. Many networks, such as ABC, NBC, FOX, CBS and CW, provide recent episodes of shows on their website. Look for a "Full Episodes" or "Videos" link on the network's main website. Click the link, then select the show you want to watch. A list of episodes available for that show will appear along with a description of each episode. Click the episode you want to watch and it will begin playing in your browser window. Often an advertisement will play before your episode begins.
Visit ad-supported services such as Hulu.com. Hulu has agreements with many networks to post recent episodes. Entire seasons and series of some shows are provided here as well. Click "Browse" at the top left of the page to view what Hulu has available or search for a show using the search bar at the top right of the page. Click on a show's name and you will be taken to an overview with a description of the show and a listing of what episodes are available to watch. Click an episode and it will begin to play in your browser window.
Visit Sidereel.com. This website tracks what shows are available to watch at other websites, such as Hulu, NBC, ABC, FOX, CBS, and allows you to search for them in one convenient place. Click "Listings" at the top of the page or search for a show using the search bar at the top right of the page. Click on the name of the show you want to watch and you will be shown a page letting you know if the episode is available for purchase on iTunes and a "Search Links" button to find where you can watch the show online. While Sidereel does not host videos on their website, they are a convenient location to find specific shows without searching multiple websites.