3rd Rock From the Sun - Season 1

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 informs the other aliens that they need to know how old they are and they also need birthdays.

Dick gives Tommy an assignment to check out high school. Meanwhile, Sally, in a quest to experience sex, goes out on a date and returns home giggly and girlish, only to be devastated when Brad, her date, doesn't call as promised.

Sally complains to Dick that, as second in command, she never gets to make decisions. Dick runs into some of his students in a restaurant, sees one of them smoking and is fascinated by how sophisticated he looks. Grabbing a cigarette, Dick is hooked with one puff.

Dick feels the need to experience physical affection, and when a hug from Harry misses the mark, his thoughts turn to Dr. Albright. He experiences jealousy for the first time when Dr. Albright responds warmly to an old friend who has turned up unexpectedly.

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

Relations become strained between Tommy and his girlfriend August when Cheryl, a cheerleader, enters the picture. Dick, Sally and Harry attend a party in honor of Dr. Hanlin, a universally-disliked faculty member. When the doctor drops dead at the party, Dick, whose honesty Dr. Hanlin admired, is perplexed to learn that his dying wish was for him to deliver a eulogy at the funeral.

Dick confides in Dr. Albright that he and Sally can't seem to stop fighting, and Mary tells him it's the same with her younger brother Roy. But when Dick meets Roy, he immediately likes him and invites him to dinner with the Solomon family. During dinner, much to Mary's embarrassment and the Solomons' alarm, Roy tells a story about being abducted from a cornfield by an alien spacecraft.

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: they're a bunch of stodgy, boring old men. When Dr. Albright is furious with him, a perplexed Dick learns that the "truth" can have many degrees and nuances.