> Kids have had TV for 60 years.

Most haven't had TV with on-demand 24-hour access to child-targetted programming for nearly that long, however.

And even less time have they had portable, go-anywhere screens with the same thing.

Cartoon Network and Nickelodeon not so much.

Nickelodeon's been around for 30. Cartoons or family oriented shows at all times when kids aren't in school, since the 1950s.