Playing to its strength, Cartoon Network is launching a preschooler block of programs that aims to teach little tykes a lesson: Laughing is important work. "Tickle U" will never be mistaken for ...

Cartoon Network’s new “Tickle U.” block from 9 to 11 a.m. is aimed at improving the network’s ratings on weekday mornings, when it falls behind rivals like Nickelodeon and Disney Channel.

To tailor the cartoon block to make it more appropriate for young kids, the “Tickle U” block contains no shows longer than 11 minutes (most are closer to five minutes). Commercials are shown ...