Complex sentence: Show produced by Hanna-Barbera and Cartoon Network two years earlier, which was also created by Fred Seibert while he was president of Hanna-Barbera, and had the same concept as Oh Yeah !
Split into simpler sentences: Show produced by Hanna-Barbera and Cartoon Network two years earlier. The show was also created by Fred Seibert while he was president of Hanna-Barbera and had the same concept as Oh Yeah!