Episode 6673

Since the premiere of his groundbreaking series African American Lives through the first season of Finding Your Roots, noted Harvard scholar Henry Louis Gates, Jr. has been helping people discover long-lost relatives hidden for generations within the branches of their family trees. Professor Gates utilizes a team of genealogists to reconstruct the paper trail left behind by our ancestors and the world's leading geneticists to decode our DNA and help us travel thousands of years into the past to discover the origins of our earliest forebears.

Household names endure some of the harshest, most grueling challenges from the playbook of the actual Special Forces selection process. There are no votes, and no eliminations – just survival. These celebrities, who are so used to being in the spotlight, quickly learn the meaning of "no guts, no glory" – and no glam.

Night Court centers on the unapologetic optimist judge Abby Stone, daughter of the late Harry Stone, who follows in her father's footsteps as she presides over the night shift of a Manhattan arraignment court and tries to bring order to its crew of oddballs and cynics, most notably former night court prosecutor Dan Fielding.

Happy's Place follows Bobbie who inherits her father's restaurant and is less than thrilled to discover that she has a new business partner in the half-sister she never knew she had.

The Irrational follows world-renowned professor of behavioral science Alec Mercer as he lends his unique expertise on an array of high-stakes cases involving governments, law enforcement and corporations. His insight and unconventional approach to understanding human behavior lead him and the team on a series of intense, unexpected journeys to solve illogical puzzles and perplexing mysteries.