TLC: How many of the 7 Little Johnsons are adopted? February 23, 2021 7 Little Johnstons is a reality television show on TLC which details the lives of the members of the Johnston family, who all have Achondroplasia Dwarfism. The show, which debuted back in 2015, has just finished airing its eighth season on TLC, with the last episode airing on February 17th. As suggested by the name of the show, there are seven members in the Johnston family, with parents Amber and Trent at the helm. Only two of the young Johnstons and Amber and Trent’s biological children, and the family have been very open about their adoption journey throughout the years.