On this week's episode, Lisa joins Mensa and after Mayor Quimby skips town the group are tasked with running Springfield. Meanwhile, Homer steals a voucher for a sexy bedroom photography shoot, which has unintended consequences.

REMINDER: Next episode will be our traditional Christmas Pub Trivia (but not christmas related, thanks Rob ;) Write in general knowledge questions which you should be able to know from either Simpsons knowledge, or just general knowledge.