Discovery

Between the third and the fourth seasons, Todd Hoffman and several crew members traveled to South America to prospect for gold in Peru, Chile, and Guyana. This was covered in several episodes, in a summer season for Gold Rush.

The seven episodes explore North America: where civilization collides with untamed wilderness. Just feet beyond our own backyards rages a spectacle we never see. Join us as we step into this hidden world teaming with life - across impossible mountains and endless deserts. Dive into unexplored forests and crash into rugged coasts. This vast continent offers boundless rewards for those brave enough to take on this land - and call her home.

Deep in Alaska an expert team of film-makers follow the astonishing lives of grizzly bears.

It's make it or break it time for each of the Teutul men as they head off in separate directions after a bruising family breakup. Who will come out on top as Orange County Choppers (OCC) and Paul JR Designs start cranking out competing bikes?

Stephen Hawking draws on 40 years of research to answer some of life's most compelling questions.

Unchained Reaction is a science and engineering reality game show that airs on the Discovery Channel. It is judged and executive-produced by Adam Savage and Jamie Hyneman, best known for hosting the science entertainment series MythBusters. Premiered on March 18, 2012, the series pits two teams of various backgrounds against each other to build an elaborate chain reaction contraption. Teams are provided with identical sets of tools and materials and are given five days to construct a series of mechanisms based on a pre-determined theme. Midway through each week, the teams are provided with a surprise "missing link" item that they must add to the middle of their machines. The winner is selected by Savage, Hyneman, and a guest judge.

Penn & Teller bring their unique vision of the world in a new interactive series with a twist. In each episode, Penn & Teller make up to seven outrageous claims. While most of the wildly unbelievable stories are absolutely, positively true - one of them is a BIG FAT LIE.

A massive effort is currently under way to reshape ground zero into an expansive 16-acre complex the likes of which has never been seen before. To document this historic effort, we are on the ground alongside the men and women who are making this vision a reality until the nationally televised unveiling of the new ground zero with President Barack Obama on Sept. 11, 2011.

Cash Cab: Chicago is a spin-off series, hosted by comedian Beth Melewski, and using the same rules as its New York counterpart. The series was cancelled after one season.

The McClure family business, Desert Valley Auto Parts, houses over 10,000 rust-free vehicles and provides original parts for thousands of car collectors and restoration junkies each year. The McClures and their rag-tag crew are constantly on the hunt for classic American cars to restore to their original glory.

Ed Stafford and Luke Collyer set out to walk the entire length of the Amazon River. Over seven thousand kilometres of the toughest terrain on the planet. Teeming with deadly wildlife and a battleground for the criminal drugs trade.

Wreck Chasers is an American reality television show on TLC about tow truckers competing in Philadelphia, Pennsylvania to claim wrecks and collect cash.

Survival expert Bear Grylls puts himself into potentially life-threatening situations to show the how-to, hands-on, step-by-step instructions on everything you may need to know when faced with a worst case scenario.

Hawking gives us the ultimate guide to the universe, a ripping yarn based on real science, spanning the whole of space and time -- from the nature of the universe itself, to the chances of alien life, and the real possibility of time travel.

A look inside the lives of the country’s most ruthless gangsters who testified against their friends and “families” in an effort to escape life in prison – or certain death. What convinced them to turn? Was it the fear of a life sentence? A threat against them or their family by their former associates?

Six men travel to various locations around the world where they stay with indigenous people, learn their local sports and then compete against each other in those sports

Lobstermen: Jeopardy at Sea is a multi-part documentary/reality show on the Discovery Channel chronicling the fall 2005 North Atlantic lobster fishing season aboard several fishing boats. Created and narrated by Thom Beers, it is heavily patterned after and can be considered a spin-off of fellow Discovery Channel program Deadliest Catch, which deals with Alaskan crab fishing. Lobstermen debuted on June 20, 2006, one week after the finale of season two of Deadliest Catch in its former time slot. The central story of the show is the struggle of first-year captain Scott Christopher and his boat, Dragon Lady, in their attempt to gain a foothold on the hotly contested fishing grounds of the Georges Bank. In 2007, Lobster Wars debuted, following not only Dragon Lady, but also four other lobster boats.