with 10 episodes premiered on March 24, 2012

with 10 episodes premiered on September 23, 2014

with 10 episodes premiered on January 5, 2016

Dr. Gates explores the genealogy of celebrities using the records left behind and DNA technology.

with 10 episodes premiered on October 2, 2017

with 10 episodes premiered on January 8, 2019

with 16 episodes premiered on October 8, 2019

with 10 episodes premiered on January 19, 2021

with 10 episodes premiered on January 4, 2022

with 10 episodes premiered on January 3, 2023

with 10 episodes premiered on January 2, 2024