All times Eastern.

• 6PM, Discovery Channel - How It’s Made: Wheel loaders; vegetable oil; hand tools; cotton swabs.
• 6PM, Science Channel - How It’s Made: Winter jackets; animation; mushrooms; gold rings.
• 6PM, History Channel - Modern Marvels: Failed Inventions. A retrospective of history’s failed inventions includes profiles of the dreamers who created them; and a look at why their ideas flopped.
• 6PM, Discovery Health - Code Blue: Fresh Faces. Two new staff members treat a teen who was shot in front of his parents’ home; and his 12-year-old neighbor, who was shot in the neck by police during a search of an abandoned building down the street from a crime scene.
• 6PM, Discovery HD - Equator: Battle for the Light. Examining the rain forests of southeast Asia, and the diversity of life they produce.
• 6:30PM, Discovery Channel - How It’s Made: Seatbelts; windows; wax figurines; hot-air balloons.
• 6:30PM, Science Channel - How It’s Made: Hydroponic lettuce; construction wood; recycling; fishing flies.
• 6:30PM, G4 - Ninja Warrior: Human physical ability is tested in each episode, as 100 competitors push their limits through a physically demanding four-stage course.
• 6:30PM, HGTV - World’s Most Extreme Homes: Sojourns to a hilltop tower in the German countryside; a well-tuned Australian dwelling that makes music; and a Swiss abode with a sculptured garden.

7PM and on after the jump!

• 7PM, Food Network - Good Eats: TORT(illa) Reform. Tortillas are prepared.
• 7PM, Discovery Channel - I Shouldn’t Be Alive: Trapped Under a Boulder. An ascent of Mount Bowen on Australia’s Hinchinbrook Island by two people results in one being pinned under a boulder in the bed of a rising creek.
• 7PM, Science Channel - Beyond Tomorrow: Reporters gauge the impact of innovations in science, medicine and environmental studies.
• 7PM, PBS (NY 21) - BBC World News: International news from the British Broadcasting Corporation.
• 7PM, History Channel - Modern Marvels: Engineering Disasters 18. Engineering disasters are recalled. Included: faults in the U.S. Army’s Stryker Light Armored Vehicle; the Sunjiawan coal-mine explosion in China in 2005; the death of three iron workers at Milwaukee’s Miller Park in 1999.
• 7:30PM, Fuel - Weekly Update: A look at the world of action sports, including news, highlights and interviews with athletes.
• 8PM, CMTV - Ultimate Coyote Ugly Search: The second season wraps up with each of the three teams getting 45 minutes to show they deserve the Ultimate Coyote title. A $50,000 prize is awarded to the winning team.
• 8PM, Travel Channel - Weird Travels: Signs. From figures carved into the desert in Peru to crop circles in England, the meanings and authors of these messages from ancient civilizations or from beyond have puzzled us for centuries.
• 8PM, Discovery Channel - I Shouldn’t Be Alive: Lost in the African Bush. A plane crash in the Kalahari Desert leaves survivors without food or water, and two of them try to find help for other passengers who are injured.
• 8PM, Fuse - Tattoo Stories: An exploration of the tattoo culture features people relating the tales behind their skin art.
• 9PM, Science Channel - How It’s Made: Plastic cups and cutlery; special-effects makeup; gold; harps.
• 9PM, Discovery Channel - Man vs. Wild: Sierra Nevada. In the Sierra Nevadas, Bear uses his knowledge of Native American survival techniques to build a shelter, calm wild horses and find food.
• 9PM, Travel Channel - Weird Travels: Creepy Creatures. Experts research the stories behind such creatures as Sasquatch and the Loch Ness Monster and suggest that there may be more truth than legend.
• 9:30PM, Science Channel - How It’s Made: Paving asphalt; marshmallow cookies; loudspeakers; electronic door locks.
• 10PM, DIY - Classic Rides: Flooring, Windows and Exterior Work. Restoring a 1970 Airstream trailer, including new weatherstripping, replacing reflector and signal lights, and repainting the emblems.
• 10PM, Discovery Health - Diagnosis: Unknown: Cruel Deception. A woman suffering from nausea, tingling in her extremities, seizures, and paralysis is suspected of being poisoned by her husband.
• 10PM, Discovery HD - Fantastic Festivals of the World: September Cultural Festival—Papua, New Guinea. A celebration in Papua, New Guinea, features painted spiritual masks made with traditional tools.
• 10PM, PBS (NY 713) - Secrets of the Dead: Irish Escape. A daring rescue of six Irish political prisoners from an Australian prison in 1875 by Capt. George Smith Anthony and his crew aboard the whaling ship Catalpa is recalled.
• 10PM, Spike - UFC Fight Night: From San Diego
• 10:30PM, DIY - Classic Car Restoration: 1962 Thunderbird: Engine Bay and Headlights. How to install new hood-insulation pads; create a baked-on enamel finish; replace engine-bay trim and authentic decals; and install halogen headlight bulbs.
• 11PM, Discovery Channel - Stunt Junkies: Go Big or Go Home: Jet Ski Double Backflip. Ross Champion attempts a double backflip on a jet ski.