Single Cel Organism #3: The Jetsons
It may be hard to believe now, but The Jetsons began its life as a prime time show. It originally aired on ABC during the 1962-63 TV season. Perhaps more notably, it debuted as the first program broadcast in color on ABC.
Here is the full Jetson family, sans Rosey/Rosie the Robot — Judy, George, Jane, Elroy, and Astro.