Download iTunes if you don't have it (see Resources).
Open the iTunes store by clicking "Store."
Click on "TV Shows,"
Look for TV shows with the “Free” label. Click on those icons and they will take you to another page listing the TV show you can download to free. You also can search for free TV shows by putting those three words in the search box at the upper-left corner of the iTunes page.
Select an episode and download it.
Go to the official website of the network that airs the television show you want to download.
Find a link to the show you want to download for free.
Find a link to "Episodes."
Look for free episodes and select the one you'd like to download.