Look for the blooper in the episode "It's Only Money". The door opens, then closes and then it appears open again.
Being a landlord is a tough job. Mr. Furley is fired twice by his brother, first in the episode, "Furley vs. Furley" and again in "The Goodbye Guy".
Joseph Staretski, one of the Three's Company writers, went on to writer and executive-produce Coach.
Priscilla Barnes (Terri) can be seen in the films Mallrats and The Crossing Guard.
Suzanne Somers sings the opening theme song on the MTV program, The Jenny McCarthy Show.
Jack, Chrissy, and Janet are based on characters in the UK version, Man About the House, the names were changed from Robin (Jack), Chrissie (Janet), and Jo (Chrissy).
Richard Kline (Larry) spent three years in the army, one year fighting as a Special Services officer in Hue, Vietnam. During his time in the military, he was struck by lighting and survived five rocket attacks.
The most controversial television programs of the late 1970s were Three's Company, Soap, and Charlie's Angels.
