S3 ep12: college students undress for their professor. Breasts and butts of females are shown.
Frequent nudity shown in sex scenes, full frontal female nudity shown at times, along with bare breasts, buttocks in several episodes throughout the seasons.
S1 ep2: In another scene, the female android removes her revealing nightgown. Full frontal nudity is shown, as well as her butt. The man is shown touching her bare breasts.
S1 ep14: There are two scenes where an engaged-to-be-married couple engages in sexual intercourse. Glimpses of breasts and buttocks are visible.
S1 ep16: A woman, while possessed by an alien, seduces and has sex with several men through the course of the episode. Full frontal female nudity is displayed many times.
Season 2: There are several sex scenes with full frontal female nudity. A woman undresses to seduce her brother-in-law.
A completely nude female appears in another scene.
S3 ep1 There are several sex scenes with full frontal female nudity.
A woman poses nude while a man paints her on a canvas.
S3 ep4: A woman is strapped to a table half-naked and experimented on by a mad scientist. After being rescued, she and her hero have sex.
A woman lifts her shirt to show a man her birthmark. The man's wife and son walk in on them and mistakenly believe that they are having an affair.
S4 ep8: A woman is stripped of all her clothing and she caresses and kisses a man until he apologizes and leaves.
A woman attempts to breast-feed her baby before being interrupted.
S4 ep23: At one point the breasts of five women are explicitly shown.
S5 ep9: Throughout the whole episode you see paintings on the wall of naked women. They show closeups of the breasts. Women in their underwear are also frequently shown. A couple has sex against a washing machine. Her breasts and his butt are visible.
Other episodes in season five show nudity and sex scenes.
Season 6:3 Female nudity during sex scene.
Season 6 and 7 have sex scenes and nudity throughout.
