Complex sentence: The series revolves around Phineas and Ferb interviewing celebrities, a premise which bears similarities to that of Cartoon Network's late-night animated talk show "Space Ghost Coast to Coast" on Adult Swim.
Split into simpler sentences: The series revolves around Phineas and Ferb interviewing celebrities. The show's aforementioned premise bears similarities to that of Cartoon Network's late-night animated talk show "Space Ghost Coast to Coast" on Adult Swim.