Many people were surprised with the quick release of 24: Season One
on DVD last year. Because of the format of the show, it wasn't "syndication friendly" so Fox decided to release the set as soon as possible in order to boost viewers for the second season.
Did it work?
According to TheFutonCritic.com
(a mighty fine website!), the second season of 24
gained almost 36% growth over last year. While the jump in viewers could be attributed to word-of-mouth, it's no doubt the availability of the first season on DVD helped the show.