At a time when broadcast television is losing advertisers, Showtime continues to add subscribers, increasing by 7 percent this year for its fifth consecutive year of growth. So what's the key to its success? "Pathology programming," says The Los Angeles Times. Entertainment chief Robert Greenblatt has focused the channel's programming around bad behavior: drug dealing (Weeds), serial killing (Dexter), sex addiction (Californication), and good, old-fashioned tyranny (The Tudors). The formula has worked to the tune of $400 million operating income for Showtime Networks, up 20 percent from last year.