3rd Rock From the Sun

Four aliens arrive on Earth, form human bodies and assume the identities of Dick, Sally, Harry and Tommy - the Solomon family - to conduct experiments and observe life on the planet.

When Tommy comes down with a terrible cold after a make-out session with his lab partner Dina, the other aliens also get sick for the first time, and they're all convinced that they're dying.

When Nina enquires about Dick's birthday to update her records, Dick has no idea how to respond. The concepts of age and "acting his age" are meaningless to him.

Dick gives Tommy an assignment to check out high school. In a quest to experience sex, Sally goes out on a date and returns home elated. However, she's devastated when her date doesn't call.

Sally complains to Dick that she never gets to make decisions as second in command. Dick sees one of his students smoking and is fascinated by how sophisticated it looks and is hooked with one puff.

Dick feels the need to experience physical affection and his thoughts turn to Dr. Albright. He experiences jealousy for the first time when Dr. Albright responds warmly to an old friend.

Sally takes on researching women and their beauty secrets. Tommy runs into August, a girl from school. When Dr. Albright leaves town for a short retreat, Dick feels devastated and abandoned.

Dick, Sally and Harry attend a party in honor of the universally disliked Dr. Hanlin. When Hanlin drops dead at the party, Dick is surprised that his dying wish was for Dick to deliver his eulogy.

Dick confides in Dr. Albright that he and Sally are always fighting, and Mary tells him it's the same with her brother Roy. When Dick meets Roy, he immediately likes him and invites him to dinner.

Dr. Albright uses flattery to convince Dick to attend a faculty meeting in her place, but Dick immediately alienates the group by innocently revealing her true feelings that they're boring old men.

Dick and Harry attend an art class where Mary Albright is studying painting and Harry, who has never been good at anything on this planet, discovers his true talent.

Harry has a new job at a video store where he takes his work very seriously. Dick convinces Dr. Albright that he should accompany her to Chicago, and they wind up stuck in a snowstorm.

The Solomons meet their neighbors the Mullers, whom they've been observing from afar. Dick makes overtures of friendship to Frank Muller, who is curious but responsive.

Dr. Albright observes that it's impossible to get a straight answer from Dick about his past and becomes convinced that Dick is actually a 1960s activist who has been hiding from the FBI for decades.

Feeling excluded when Nina and Dr. Albright do some female bonding, Dick dresses in drag, crashes a women's study group, shares his feelings and humiliates Dr. Albright.

When Dick and Sally meet with Tommy's teacher, they learn that Tommy's having trouble fitting in. Sally is less concerned with Tommy than with getting to know his handsome teacher, Mr. Randell.

When the aliens' car stereo is ripped off while they're at the mall, Harry and Sally pay a visit to the police station to report it and begin discussing security measures.

Tommy claims Dick is "pudding-whipped" because he does everything that Dr. Albright tells him to do. Dick rebelliously tells Mary he'll be attending a bachelor party at a strip club instead of hers.

Dick is devastated to learn that Dr. Albright is getting a bigger, better office and is leaving him with an eccentric new office mate, so he tries to make her change her mind.

Tommy reports to the aliens' boss, the Big Giant Head, that Dick has been squandering time in pursuit of an earth woman. When Dick hears about it, he vows to have a successful date with Dr. Albright.