If you're an average American, you spend about four hours watching TV daily, which works out to 13 years in the course of a typical lifetime. And a lot of that will be spent switching channels, because for every classic hit series like "M*A*S*H," "Law & Order" or "The Simpsons," there are a ton of other shows that seem to disappear as quickly as soap bubbles. Test your knowledge of TV hits and flops with our quiz.
Question 1 of 20
Which pair of shows are the longest-running dramas in TV history?
Question 2 of 20
How long did the CBS detective series flop "South of Sunset" last?
Question 3 of 20
Was "Baywatch Nights" a hit or a flop?
Question 4 of 20
Real-life policemen say this hit TV cop show was the most realistic of the bunch.
Question 5 of 20
Was the TV show "Charlie's Angels" a hit or a flop?
Question 6 of 20
Which of these spinoff series was a hit in its first season but flopped in its second?
Question 7 of 20
Before the "Who Shot J.R.?" episode of "Dallas," what was the most-watched TV series episode?
Question 8 of 20
Was "The Green Hornet" a hit or a flop?
Question 9 of 20
Which of these shows was a critically acclaimed ratings flop?
Question 10 of 20
Was "Lou Grant" a hit or a flop?
Question 11 of 20
Which of these TV flops was seen as an effort to capitalize on the hit "Mad Men"?
Question 12 of 20
Which of these shows was a flop on network TV before becoming a hit in syndication?
Question 13 of 20
Which of these hit series spawned the equally big hit "Frasier"?
Question 14 of 20
Which hit U.S. TV series was based on an earlier British version?
Question 15 of 20
Which hit TV series spawned two spinoff flops?
Question 16 of 20
This show, a moderate hit on network television, moved to cable and its first episode there became the highest rated ad-supported sitcom in cable history. What was it?
Question 17 of 20
Where did "Cheers" place in ratings its first season?
Question 18 of 20
This spin-off was a much bigger hit than its original show.
Question 19 of 20
Was "Touched by an Angel" a hit or a flop?
Question 20 of 20