'X-Files': The Mulder-Scully hookup

Season six: The down 'n' dirty

Mulder’s sex life: Still no luck.

Scully’s sex life: Her bad luck continues, as a hunky local sheriff who takes a shine to her ends up dead with his heart ripped out. Kind of hard to overlook the symbolism.

Do they do it?: No, but in the episode "Arcadia" [pictured] they pose as a married couple named Rob and Laura (in honor of "The Dick Van Dyke Show") while on assignment in a strange planned community. Like TV’s original Rob and Laura, they sleep in separate beds.