South Park (1997)

S8E13 Cartman's Incredible Gift

After suffering a serious head injury, Cartman suddenly claims to possess the ability to foresee future events. The detectives of South Park eagerly seek his assistance in solving cold murder cases, and Cartman is more than happy to oblige, but only for a fee. Meanwhile, a group of certified psychics is incensed when Cartman declines their invitation to join their exclusive circle.