Test Your Knowledge: Streaming TV

Generally, the major networks upload shows on their Web sites one day after they're on the air. And in some cases, the networks only keep the free shows online for a few weeks. However, if you want to catch up on every episode of that show you've been hearing so much about, you can pay to watch entire seasons on other streaming sites, like Hulu Plus.

The serious fan who isn't near a TV will need to pay to watch a show the same day it's on the air, and the new fan will probably have to pay to view an entire past season. Casual fans, however, may be happy with whatever is offered for free.

Paying to watch TV shows usually allows you access to a wider variety of shows: It's about quantity, not quality.

Netflix is running into roadblocks in its efforts to buy rights to streaming content. The company's Web site notes that a wider selection of programming is available on DVD.

For nearly a decade, major sports leagues, such as the NFL, have offered exclusive broadband access to live games.

The Nielsen Company has placed meters on viewing devices for decades; the problem lies in measuring who has been exposed to advertising, since online programs can contain different ads from the same programs that run on television.

Since most search engines will simply direct you to a TV network's Web site to watch a show, they're a great place for devout channel surfers who are looking for something new and interesting.

Many TVs can be connected to your computer with a simple cable so you can watch on the big screen as opposed to on your computer screen.

While many shows online contain limited commercials, the main downside is that networks only make them available for a few weeks. Thus, the show's Web site may not contain a full library of episodes.

As of early 2011, Apple TV allows viewers to rent TV shows for up to 48 hours. That allows viewers to catch up on shows they just want to watch once without paying more to keep them forever.