Maybe you're familiar with the computer-animated cartoon "Veggie Tales," a video series targeted at children ages 2 to 8, and which features moral and religious tales hosted by Bob the Tomato and Larry the Cucumber. Beginning in 1993, the series was distributed on VHS tapes, telling biblical stories like the Battle of Jericho, David and Goliath and the tale of the Good Samaritan. Each show ended with a Bible verse. And it's been a marketing phenomenon. Without any broadcasting or syndication on television, "Veggie Tales" has sold more than 50 million "Veggie Tales" DVDs and videotapes -- primarily, but quietly,...