Complex sentence: While they watch television together, Peter becomes hooked on "Jolly Farm Revue" and loses track of Stewie; when Lois blasts him, he wishes she was more like Mother Maggie.
Split into simpler sentences: While they watch television together, Peter becomes hooked on "Jolly Farm Revue" and loses track of Stewie. After being called out by Lois, Peter wishes she was more like Mother Maggie.