Twin Peaks 1990 1991 television show featured the show within a show entitled Invitation to Love a soap opera watched by characters that often mirrored events on the TV show itself ITL featured identical twins Jade and Emerald Lancaster played by Erika Anderson one good Jade and the other evil Emerald The twins were thought by some critics to mirror the cousins Laura Palmer evil and Maddie Ferguson good although the two actual characters were not twins but closely resembled cousins