In the third and fourth seasons, respectively, kids Pebbles and Bamm-Bamm ... BARNEY AND FRED WERE DRAWN TO RESEMBLE CAVE PEOPLE. Ed Benedict was one of The Flintstones's designers.

There's some Yabba Dabba depressing news for Fred Flintstone ... kids wanted some variety. Cena, famous for wearing brightly colored costumes while wrestling, has been promoting Fruity Pebbles ...