X Factor - Season 4

Jeopardy! is a classic game show -- with a twist. The answers are given first, and the contestants supply the questions. Three contestants, including the previous show's champion, compete in six categories and in three rounds (with each round's "answers" being worth more prize money).

Led by Emmy Award-winning journalist Paula Zahn, On the Case features in-depth interviews and original reporting that go beyond the headlines in search of fascinating mysteries from within our nation's justice system. Each episode is highlighted by Zahn's riveting exclusive interviews, which draw out different viewpoints from the people personally connected to tragedies that rocked their local community and the investigations that attempted to piece together the truth On the Case with Paula Zahn.

With roadside diners, vintage drive-ins and out-of-the-way "dives" enjoying a resurgence of hipness among foodies, host Guy Fieri travels across America in search of some of the best "greasy spoon" eateries. The restaurants that Guy visits are usually well-known among locals and other people in the region. While at each location, Fieri talks to the staff as well as the customers to get their thoughts on the food. Many episodes feature eateries that are connected by a common thread, such as burgers or comfort foods but its all here on Diners, Drive-Ins and Dives.

The UnXplained will tackle subjects that have mystified mankind for centuries, from mysterious structures and cursed ancient cities to extraterrestrial sightings and bizarre rituals. The series will also feature contributions from top scientists, historians, engineers and researchers - each seeking to shed light on how the seemingly impossible can happen.

Emmy Award and Grammy Award winner Jimmy Fallon brought NBC's "The Tonight Show" back to its New York origins when he launched The Tonight Show Starring Jimmy Fallon from Rockefeller Center. Fallon puts his own stamp on the storied NBC late-night franchise with his unique comedic wit, on-point pop culture awareness, welcoming style and impeccable taste in music with the award-winning house band, The Roots.