Baffling symptoms. Controversial diagnoses. Costly treatments. Seven people with chronic illnesses search for answers — and relief.

Big Brother is a television reality game show based on an originally Dutch TV series of the same name created by producer John de Mol in 1997. The show follows a group of HouseGuests living together 24 hours a day in the “Big Brother” house, isolated from the outside world but under constant surveillance with no privacy for three months. Since its television debut in 2000, Big Brother has run continuously with at least one season of the show airing each year. It is currently the second longest running version in the world to have done so, after the Spanish version. The HouseGuests compete for the chance to win a $500,000 grand prize by avoiding weekly eviction, until the last HouseGuest remains at the end of the season that can claim the $500,000 grand prize. The American series is hosted by television personality Julie Chen. Produced by Allison Grodner and Rich Meehan for Fly On The Wall Entertainment, it currently airs in the United States on CBS and Global.

The show’s debut season followed the format of most international editions of the series, in which a group of contestants live together and are voted off each week by the viewers. Following a negative critical and commercial reaction to the first season, the format for future changes was drastically changed. For this new format, a group of contestants, known as “HouseGuests,” compete to win the series by voting each other off and being the last HouseGuest remaining. One HouseGuest, known as the Head of Household, must nominate two of their fellow HouseGuests for eviction. The winner of the Power of Veto can remove one of the nominees from the block, forcing the HoH to nominate another HouseGuest. The HouseGuests then vote to evict one of the nominees, and the HouseGuest with the most votes is evicted. When only two HouseGuests remained, the last seven evicted HouseGuests, known as the Jury of Seven, would decide which of them would win the $500,000 prize. Much like the first season, the HouseGuests are still under constant surveillance and are filmed at all times. The September 5, 2013 episode marked the show’s 500th episode.

Selection for the SAS is one of the world’s toughest job interviews and physical fitness is only the starting point. What’s really being tested is psychological resilience and character as candidates undergo sleep deprivation, interrogation and a series of increasingly complex mind games. In this programme, five ex-special forces soldiers re-create tasks from the SAS’s secret selection process, putting 30 civilian men through the ultimate test of their physical and – more importantly – their psychological resilience.

Three talented tattoo artists transform extreme inking disasters into walking works of art.

Top Chef is an American reality competition show on the cable television network Bravo, that first aired in 2006, in which chefs compete against each other in culinary challenges. They are judged by a panel of professional chefs and other notables from the food and wine industry with one or more contestants eliminated in each episode. The show is produced by Magical Elves Productions, the same company that created Project Runway.

Nine international adaptations of Top Chef have been produced, two of which, the Franco-Belgian Top Chef and the Dutch Topchef, have had four seasons each. In the United States, the show has had two spin-offs: Top Chef: Masters, featuring established, award-winning chefs, and Top Chef: Just Desserts, featuring pastry chefs. One more spin-off is planned: Top Chef Junior, featuring contestants in their early teens.

On May 10, 2013, it was announced that the upcoming eleventh season of the series will be set in New Orleans, Louisiana. It will premiere on October 2, 2013.

Celebrity Big Brother is a British reality television game show in which a number of celebrity contestants live in an isolated house trying to avoid being evicted by the public with the aim of winning a large cash prize being donated to the winner’s nominated charity at the end of the run. The programme aired annually between 2001 and 2011, until 2012 when, for the first time, two series aired in the same year. This process has since continued.

The show is a spin-off of the original series Big Brother. There are a number of differences between Big Brother and Celebrity Big Brother. For example, Celebrity Big Brother lasts for a much shorter time than Big Brother and the celebrities – so long as they are not ejected or quit the programme – are paid for their participation.

From its inception in 2001, Celebrity Big Brother was broadcast on Channel 4 and its sister channel E4, until Big Brother was cancelled by Channel 4 in 2010 due to falling ratings. Celebrity Big Brother has been broadcast on Channel 5 and its sister channel 5* since Channel 5 acquired the rights in 2011. During its run on Channel 4, Celebrity Big Brother was presented by Davina McCall, who also presented the original show.

For many people, owning and operating their own business is the ultimate American dream. On average, more than 540,000 new businesses a month will launch in the United States, but what separates a good idea from one that just reads well on paper? Enter the experts who are offering not only a cash investment, but sweat equity to burgeoning businesses.

The American version of this unscripted cooking series pits celebrity duos against each other as they cook and critique each other’s food, in Hollywood homes. The teams will take turns hosting intimate dinner parties with a menu designed to impress their rival competitors and two professional chef judges.

Three hard-core crews of gold prospectors take the gamble of a lifetime and battle to strike it big, deep in the wild west of outback Australia. The soaring highs and the crushing lows of the gold season are revealed as the crews pursue their all-important targets – braving brutal heat, punishing conditions, mechanical breakdowns and constant pressure.

Follow the passionate, volatile and hot-and-bothered-staff at Lisa Vanderpump’s West Hollywood mainstay SUR. Lisa balances her motherly instincts and shrewd business sense to keep control over this wild group of employees as they pursue their dreams and each other while working at her “Sexy, Unique Restaurant.”

Twenty modern day Brits try to survive two months in the wilderness. Channel 5 sent 20 people back to the Stone Age to take part in a social experiment. Things did not go as planned.

Cameras follow the lives of the employees at the famous L.A. hotspot The Abbey in the heart of West Hollywood, and you can bet there’s major drama.