Will & Grace (1998)

Season 1: Episode 10

Will and Grace become hooked on a real-life soap opera unfolding in their neighbors' apartment when they begin eavesdropping through the new heating vent in their floor. As Will and Grace live vicariously through the marital infidelities of the downstairs couple, Jack feels neglected and enlists Karen's help in staging a play that drives the message home to his two best friends.