In episode 610, the sixth season finale, the merry myth-shatterers puncture the nostalgic but unrealistic tendency of humans to long for an idyllic past - one that, in truth, never really existed.

Penn and Teller explain the necessity of nuclear power in modern society, advocating that it is both cleaner and safer than the alternatives such as coal. Advocates from the pro-nuke side and anti-nuke side are interviewed. Along the way, they debunk the myth of hybrid car fuel efficiency by having two lesbians take a road trip across southern california.

The New Age is a marketeers dream. From aromatherapy dishwashing liquid to yoga to crystals, herbs and tarot, we're swallowing it all! Join us as we travel to the Mecca of New Age, Sedona, Arizona, where we'll chant, sing, and seek a higher consciousness from hill to dale to parking lot. And stay for our big climax! They say Maui's the place to achieve a cosmic orgasm while holding a tantric pretzel pose. Watch out! It's a flying vortex!

Mount Rushmore is usually seen as a symbol of American pride and ingenuity. In an episode that will have American patriots enraged, Penn and Teller interview a native tribesman who sees the monument as a symbol of American sacrilege and imperialism, while Penn and Teller themselves say it is little more than an elaborate tourist trap envisioned by a white supremacist.

In episode 605, the magicians think twice about the high cost of getting a good night's sleep due to the ever-growing industry of sleep product hawkers trying to convince consumers that a special pillow, mist machine or pill will deliver a magical rest.

We'll go to a hearing in NYC, where the dangers of second-hand smoke, and legislating human behavior, is being hotly debated and stage a hidden-camera sting that shows just how rabid people are about this topic. Also, a look at smart videos, teaching babies to read, the "Baby Whisperer," and the baby product industry that preys on guilt ridden parents with money to burn.

This show checks out penis and breast enlargement products, techniques and myths. Also aphrodisiacs: do they work? Expect some graphic and jaw-dropping visuals.

Penn & Teller expose the truth behind our supposedly toxic insides. We find out about "colonics" and those "cleansing" diets including today's diet darling, the "Neera Super Cleanse." An actual Parasitologist - a scientist who studies parasites - tells us the truth about the parasites among and within us. A visit to the world's largest inflatable walk-through colon rounds out the episode.

Penn and Teller visit Congress to discuss the bullshit which is America's complex, unfair tax system.

PETA (People for the Ethical Treatment of Animals) is against all forms of medical testing involving animals - regardless of the potential benefits to human beings. PETA supports banning the ownership of pets and advocates releasing them into the wild. It's enough to make a vegetarian eat meat!

Penn & Teller examine the organic food industry to determine if it is, in fact, more nutritious, and better for the environment.

BULLSHIT tours Inverness, Scotland, the home of the Loch Ness Monster, with two "cryptozoologists" who try to lure the mythical giant of the deep to the surface... with a bag of fish guts. Later, we investigate the latest mysterious Bigfoot footage posted on the internet. In between, we check in with some credentialed scientists for their take on the bullshit "science" of Cryptozoology. Will our scientific experts conclusively debunk the existence of mythical creatures? Here's a hint: Crypto means "hidden" while zoology stands for the study of animals. Put them together and what do you get? BULLSHIT!

Penn & Teller look at women's breasts and society's response to them. In New York City, we meet a young mother who inadvertently tested corporate tolerance for breast-feeding in public. Further south, in Daytona Beach, Florida, we meet a woman who challenged the rights to flash her breasts in public. We also meet a breast cancer survivor who is not a supporter of those ubiquitous Pink Ribbons. And, down in the valley of porn, we find a topless porn star/mother of two who philosophizes on the benefits of the La Leche League.

The world will end on December 21, 2012 - that's according to a growing legion of doomsayers who follow the primitive Mayan calendar. The duo follows a pair of investigators to ancient Mexico to explore the mysterious "Mayan Prophecy".

Penn & Teller will try to prove that many diet products and diet claims are complete nonsense. Also, a look at the obsession with products that claim to be healthier for you such as organic foods, fat free foods, etc.

Everyone knows that prostitution is practiced throughout the land. Where it is legal - in only a few Nevada counties, prostitution is vigorously regulated and monitored by the State of Nevada Health Department. The women submit to compulsory medical tests for STDs. No one is forced to work as a prostitute. Pimps don't exist. HIV has never been detected. The women earn regular paychecks and tips. Some even get vacation and sick days. And they pay taxes! It's BULLSHIT that it's illegal for two consenting adults to have sex with each other!

BULLSHIT goes on the prowl for virgins! We meet women - and men! - who are saving themselves for marriage. We find out -what the hell for? Then, there's sex education! We find out if it is helping them screw…or screwing them up. And we get really revved up about teaching abstinence only! We meet an expert who encourages multiple sex partners before settling down. He has proof that sex reduces stress and it releases endorphins that make us feel good. The cherry on the top of our cherry is a visit to a masturbation clinic. Now we're talking sex education! We'll also meet up with the former US Surgeon General, Dr. Jocelyn Elders. She was fired for advocating masturbation as an alternative to sexual intercourse to prevent STDS, and that's BULLSHIT.

In the sixth season premiere, Penn and Teller look at the "War on Porn",a crusade by various special interest groups to restrict free speech and regulate the Internet.

On the season seven premiere, Penn and Teller expose the 'Bullshit' behind the people who market and exploit other gullible people by treating them with unorthodox methods to achieve orgasms. Featuring undercover at a 'sex class', interview with the inventor of a 'remote control' orgasm machine, and other segments.

There's no proof that AA or any other 12-Step program is any more effective than going cold turkey, doing things in moderation or getting medical help. And there's a debate raging whether alcoholism is even a disease! The quasi-religious 12-step groups have America brainwashed into believing that a higher power will take care of everything. Whatever happened to personal responsibility?!

Penn & Teller expose America's love/hate relationship with Wal-Mart. We look at the good and bad sides of the biggest employer in the US. We challenge the director of the documentary, "Wal-Mart: The High Cost of Low Price," we reveal union efforts to smear Wal-Mart, we meet a chronically unemployed young mother in Chicago to see how her life changed when Wal-Mart came to town and we look for the silver lining behind third world sweatshops.

According to Penn and Teller, America's seniors are stripped of their dignity thanks to ongoing stereotypes about old people. They investigate the widespread beliefs that old people can't drive, don't have sex, and smell bad.

Every generation worries about teen sex, but today's parents are more hysterical than ever. The duo will look at the drastic measures adults are taking to combat the perceived dangers of teenage promiscuity, "sexting," and gay-straight alliances.

Hold on to your cheeseburger! Public Health agencies, food activists and special interest groups have launched an all-out war against fast food restaurants. Should the government really be spending our tax dollars to regulate what, where, and how we eat?

Research has proven that self-esteem-building does not work. However, misguided parents, coaches and social workers are using this flawed technique to create a generation of narcissistic losers who believe that they are "special."