It looks like the 2007-08 season will be the last for top-rated Saturday morning terrestrial block Kids’ WB! Fledgling net The CW, spawned from the merger of UPN and The WB in 2006, will be dropping the block as of the 2008-09 season in favor of 4Kids Entertainment programming, which currently airs on Fox on Saturday mornings. 4Kids has effectively doubled its terrestrial presence by striking a five-year deal with The CW to program its Saturday morning kids block, as it’s also renewed its current agreement with Fox for the 2008-09 season.

The planned five-hour 4Kids block on The CW will air between 7 a.m. and 12 p.m. 4Kids will take care of national ad sales, but will share revenue from the block with The CW, applying the net’s portion against a guarantee.

As for the programming lineup, expect 4Kids stalwarts like Yu-Gi-Oh! and Teenage Mutant Ninja Turtles to populate the block, however a set sked has yet to be hammered out.