After "Little People, Big World" made a splash on TLC, the network decided to pursue more programming telling the stories of those living with a form of dwarfism. For Jen Arnold — one half of the success of "The Little Couple" — her life with spondylo-epiphyseal dysplasia resulted in her standing at just 3'2”. Fans were instantly hooked on the couple's life in Houston, Texas — and just like that, a new TLC hit show was born.

As noted by Celebrity Net Worth, Arnold and her husband, Bill Klein, were introduced to the viewers of TLC in a standalone special entitled, "Little People: Just Married." The episode dropped in March 2009, and the first season of their titular show followed shortly after. Telling the story of the couple's experience during childbirth, at work, and on family vacations, among other activities, "The Little Couple" found huge success among viewers. The show ran for more than a decade — with a hiatus in 2016 — making Arnold and Klein household names.

Their life hasn't been incredibly easy, however — and not just due to being followed around by cameras or navigating life with a specific medical condition. Arnold suffered from a rare cancer after losing a pregnancy, sharing the experience with their viewers. Hardships, television, and fame have made this couple fan favorites, and Arnold and Klein have a collective $3.5 million to their name.