KidShow! is a Saturday morning animation and live-action block for children and it's broadcast by RKO Network. It's programmed by RKO Television Animation in association with RKO Television Studios. Its first broadcast was in 1930 (under its original brand as RKO KidShow).
RKO Cartoon Express
RKO Saturday Morning
In 1986, RKO Cartoon Express was replaced by RKO Saturday Morning and began to show live-action kids programming.
In 1987, RKO Saturday Morning was replaced by RKO SuperSaturday.
RKO Funny Saturday
In 1988, RKO SuperSaturday was replaced by RKO Funny Saturday.
RKO's BIG New Saturday
In 1989, RKO Funny Saturday was replaced by RKO's BIG New Saturday.
RKO Cartoon Zone
In 1990, they stopped air live-action kids programming and RKO's BIG New Saturday was replaced by RKO Cartoon Zone.
Disney's One Saturday Morning
Nick Jr. on RKO
In 2001, Disney's One Saturday Morning got blocked by Disney and was replaced Nick Jr. on RKO.
In 2007, RKO Xplosion was replaced by 4Kids TV.
Toonzai on RKO
Vortexx on RKO
In September 27, 2014, Vortexx on RKO was officially relaunched as KidShow!, reviving the original block branding.