S1, E3: Worried that his material is stale, Mark tries to freshen up his comedy act with edgier material before the school’s public speaking contest. Sister Rose decides that Mark must play the cello, he fears the instrument will make him a social pariah. But when his cello is taken by a gang of bullies, Fox begrudgingly comes to his rescue. Meanwhile, Pop and Sister Rose take a stroll down memory lane when it’s revealed they used to be an item.