Children's advocates are urging parents to spend time with their children away from the TV this weekend. Started in 1996 as "TV-Turnoff," this is Screen-Free Week -- an annual effort to get kids free from the grip of electronic devices. It's called the Campaign for Commercial Free Childhood.

The idea behind Screen-Free Week is to get kids' noses out of hand-held games, smart phones and TVs and get them to read, explore nature, and spend time with friends and family. Some studies show, on average, preschoolers spend 32 hours a week looking at screen devices.