It took three episodes of "House of Cards" before people really caught on to the idea. Six episodes of "Mad Men." Five episodes of "Daredevil." And four episodes of "Unbreakable Kimmy Schmidt."
What does being hooked really mean? Netflix defines it as the episode after which 70 percent of that episode's audience goes on to finish the first season.
Some shows, like "Breaking Bad," got off to a quick start — taking only two episodes to lure people in. Fans might remember that as the episode where Jesse tries to dissolve a dead body with acid in a bathtub, and the science project goes gruesomely wrong.
But not all series are so successful. It took as many as eight episodes of "How I Met Your Mother" before people really got hooked — which just shows the benefits of releasing a whole season of a show at once, according to Netflix.
"In our research of more than 20 shows across 16 markets, we found that no one was ever hooked on the pilot," said Netflix chief content officer Ted Sarandos, in a company release.