Complex sentence: He has also made guest appearances on several other TV series as well as having written two episodes of "Seinfeld" ("The Soup " and the Kramer/chimpanzee subplot of"The Face Painter").
Split into simpler sentences: He has also made guest appearances on several other TV series. He wrote two episodes of "Seinfeld" ("The Soup " and the Kramer/chimpanzee subplot of"The Face Painter").