Channel Four (Great Britain)

Climb into a roller coaster and remain seated for an exhilarating exploration of the science and psychology behind America's adrenaline rush. Every year, roller coasters evolve. Some get bigger, faster, longer and more terrifying, hurtling riders upside-down, backwards and down steep descents - sometimes at speeds nearing 80 miles per hour. Momentum, friction, gravity, energy, acceleration, and centripetal force are simply the physical laws behind...

There are reasons the IT Department of Reynholm Industries is kept in the building's basement. The department's employees are bitter slacker Roy, ber-nerd Moss, and technically clueless Jen. Jen finds that her builder is urinating in all of her sinks; Moss has begun to speak like a manly football fan; Roy is now living on the streets; Reynholm will have a new Employee Of The Month; Friendface's horror needs to be stopped; charity calendars may feature...

Veterinary scientist Mark Evans and comparative anatomist Joy Reidenberg team up with local "python hunters" in the Florida Everglades, as they work to control the population of the invasive Burmese python, which have been thriving and threating other native animal species populations in the region, and dissect and examine the anatomy of a python.

Three modern families were chosen to learn to survive as if the year is 1883. Using the tools and technology of that time they must make difficult choices and cope with the consequences in the Montana wilderness.

Scientists investigate floods occurring in the remote past that evidence shows to have been of a magnitude far greater than even the more extreme floods of today. The possibility of such floods recurring and the connection between cataclysmic floods and climate change are discussed.

Alice & Jack explores perseverance, passion, and the true sense of partnership over the course of a profound fifteen-year relationship. Honest, intimate and surprisingly funny, it asks the seminal question of our time: are the bonds between us stronger than the forces that would tear us apart?

A young boy wakes up to find a thick blanket of snow outside. He decides to build a snowman using coal for his buttons and eyes, a tangerine for his nose, and a hat and scarf. Later that night, the snowman comes to life, and the two set forth on a magical journey to the North Pole.