Dame Julia Walsh

History's Greatest Mysteries will investigate a wide range of historically compelling topics and the mysteries surrounding each including the Titanic, D.B. Cooper, Roswell, John Wilkes Booth, and more. Each program within the franchise will showcase fresh, new evidence and perspectives including never-before-released documents to the general public, personal diaries and DNA evidence to unearth brand-new information about these infamous and enigmatic chapters in history.

In each episode of Guy's Grocery Games, four talented chefs compete in a number of challenges as they navigate their way through the aisles of a grocery store, adhering to "real-world" obstacles. Whether it is shopping on a budget, substituting out-of-stock ingredients or grabbing groceries at closing time, each chef has to shop, prepare, and plate three different dishes using whatever they can pull off the shelves. Ultimately, the food does the talking, as one-by-one the losing chefs "check out," by a rotating panel of judges that includes Melissa d'Arabian, Richard Blais, G. Garvin, Troy Johnson, Catherine McCord, Aarti Sequeira, among others. The last chef standing goes on a shopping spree of a lifetime worth up to $20,000!

Georgie & Mandy's First Marriage follows Georgie and Mandy as they raise their young family in Texas while navigating the challenges of adulthood, parenting and marriage.

After surviving Godzilla's attack on San Francisco, Cate is shaken yet again by a shocking secret. Amid monstrous threats, she embarks on a globetrotting adventure to learn the truth about her family—and the mysterious organization known as Monarch.

Ancient Aliens explores the controversial theory that extraterrestrials have visited Earth for millions of years. From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode in this hit History series gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate. Did intelligent beings from outer space visit Earth thousands of years ago?