You will watch The Simpsons Season 8 Episode 17 – My Sister, My Sitter online for free episodes with high quality. Online episode guide, The Simpsons Season 8 Episode 17 – My Sister, My Sitter.Lisa wants to start babysitting, but Marge thinks she is too young. Flanders urgently needs a babysitter and Lisa gets her first job. When Flanders gives her a glowing review, she starts to get steady work. Then one evening, Lisa is put in charge of babysitting Bart and Maggie. Bart is outraged and embarks on a series of pranks. When Bart refuses to go to bed, Lisa accidentally knocks him down the stairs which dislocates his arm.