Watch the full-length episode at https://video.pbs.org/video/2365355428/?Utm_source=youtube&utm_medium=pbsofficial&utm_campaign=fiyo_covefullprogram (US Only) Valerie Jarrett digs into the family history of her legendary Great-Grandfather, MIT’s first African-American graduate and an accomplished architect, recruited to help build the prestigious Tuskegee Institute. How did a man born into slavery have the resources to send his son to a private college? Professor Gates and the Finding Your Roots team investigates Jarrett’s lineage to shed light on this mystery.