All times Eastern.

• 6PM, Discovery Channel – How It’s Made: Honey; fiber optics; bricks; pipe organs.
• 6PM, Discovery Times – Hirohito: Emperor of War: The role of Japanese emperor Hirohito in the 1941 Pearl Harbor attack is examined.
• 6PM, National Geographic – Dangerous World: Roads. Examining some of the world’s most perilous roads with a scientific look at what makes them so deadly. Included: the narrow, two-lane Pearblossom Highway in the California desert; the Yungas Road in Bolivia; and Australia’s Eyre Highway.
• 6PM, Science Channel – How It’s Made: Included: bicycle helmets; lithium batteries; car brakes; aluminum.
• 6PM, Discovery Health – Code Blue: Blink of an Eye. Trauma patients include a comatose car-crash victim; a man with a severed spinal cord; a motorcyclist who may have a ruptured spleen; and a toddler with a mechanical pencil stuck in his ear.
• 6PM, Fuse – The Sauce: A magazine program that features music news, lifestyle information and celebrity guests.
• 6:30PM, Discovery Channel – How It’s Made: Included: safes; false teeth; airplanes; maple syrup.
• 6:30PM, HGTV – World’s Most Extreme Homes: An Indonesian-themed home with a paint scheme based on the chakras; an old fire truck transformed into a motor home; a house built on the side of a cliff in Brazil.
• 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, Science Channel – How It’s Made: Included: eyeglass lenses; granite; potato chips; microprocessors.

Friday is such a good TV night. 7PM and on after the jump!

• 7PM, PBS – BBC World News: International news from the British Broadcasting Corporation.
• 7PM, Food Network – Good Eats: Tortillas Again. Experimenting with tortillas to transform a variety of leftovers. Included: lasagna; nachos.
• 7PM, History Channel – Modern Marvels: Gas Tech. The history of natural gas is examined. Included: a visit to the Federal Helium Reserve at the Bush Dome reservoir in Texas.
• 7PM, National Geographic – Chupacabra: An examination of the mythical creature, described as part reptile, part kangaroo and part vampire bat, features theories about its origins, including an alien invasion and a secret genetic experiment.
• 7PM, Discovery Channel – Rogue: Lions. In South Africa’s Kruger National Park, Dave examines lions that have modified their behavior so they now target humans as prey. Included: attempts to make the lions fear humans again.
• 8PM, Discovery Channel – I Shouldn’t Be Alive: Shark Survivor. Horrific account of a crew of five aboard a luxury yacht sailing from Maine to Florida that sank in a storm, leaving the crew adrift on a lifeboat with no food or water and menaced by sharks.
• 8PM, Discovery HD – 1000 Places to See Before You Die: Italy. The Ulles tour Italy, including a seaplane ride over Lake Como; a visit to the Alpine village of Bellaggio; a gondola ride through the canals of Venice; and glassblowing in Murano.
• 8PM, History Channel – Houdini: Unlocking the Mystery: Host Lance Burton examines a rare collection of Houdini’s personal artifacts, many of which were used in some of his most famous tricks. Included: the water-torture cell; a milk can used in an escape trick; straitjackets; lock picks; handcuffs.
• 8PM, WPIX – Friday Night SmackDown: The Undertaker vs. Batista in a steel-cage World Heavyweight Championship match.
• 8PM, Science Channel – Planets: Life. Examining the chances of finding life on another planet, focusing on Mars.
• 9PM, Fuel – Daily Habit: Youth culture is the focus of this magazine show, which features action-sports athletes and comedy and music segments.
• 9PM, Discovery Channel – Man vs. Wild: Mount Kilauea. On Mount Kilauea, an active volcano, Bear climbs down a rope from a helicopter and demonstrates how to create a gas mask, escape from a moving lava flow, find water in a lava tube and get honey from a bee’s nest.
• 9PM, Science Channel – Space Station and Beyond: A report from the space station includes the latest accomplishments and future endeavors.
• 9PM, Military Channel – 20th Century Battlefields: 1982 Falklands. The 1982 Falklands War between Britain and Argentina is recounted by hosts Dan and Peter Snow.
• 9:30PM, Fuel – On the Clock: Destination Chile: A snowboarding excursion to Chile, with an intimate look at Chilean culture.
• 10PM, Science Channel – Supermassive Black Holes: Examining the celestial phenomena and theories about them.
• 10PM, Discovery HD – Fantastic Festivals of the World: Obon and Eisa Festivals Okinawa, Japan. Young dancers perform the Eisa dance in Okinawa Island for the three-day Obon festival, celebrated to honor ancestors’ spirits.
• 10PM, PBS – Secrets of the Dead: Headless Romans. The August 2004 discovery of headless Roman skeletons in a mass grave in York, England, is examined, as archaeologists try to determine who the victims were and why they were killed.
• 10PM, Spike – UFC Fight Night: Tito Ortiz vs. Ken Shamrock 3
• 11PM, Discovery Channel – Stunt Junkies: Go Big or Go Home: Snowboard World Record. Alexis Waite attempts to set a snowboard world record for the longest distance jumped by being towed by a snowmobile down a slope to a takeoff ramp.
• 11PM, History Channel – Mega Movers: Really Big Bridges. Bridge relocations are examined. Included: A bridge in Rhode Island is transported 15 miles. Also: Experts discuss how San Francisco’s Golden Gate Bridge could be moved.
• 12AM, Spike – Whacked Out Sports: Sports videos from around the globe featuring crashes, falls, bloopers and fantastic finishes.
• 12AM, Travel Channel – Loretta Lynn’s Haunted Plantation: Country singer Loretta Lynn tours and tells about the historic past of her plantation home nestled in the hills of Tennessee called Hurricane Mills; Loretta tells of her discovery of ghosts on her land including Civil War soldiers
• 12AM, Discovery HD – World’s Best Beaches 2005: Experts from Conde Nast Traveler, USA Today and Fodor’s pick the best family beach, best romantic beach and the best overall beach in the world.
• 12:30AM, Spike – MXC: Desperate Housewives vs. Ultimate-Fighting Champs. Professional pugilists battle stereotyped housewives.
• 12:30AM, G4 – Wired for Sex: A look at how technology influences sexuality in the 21st century.
• 1AM, Spike – Game Head: A weekly showcase of the world of video games.
• 1AM, PBS – Hidden India: The Kerala Spicelands: Historian Bruce Kraig conducts a culinary and cultural tour of the southern-Indian state known for its cultivation of spices and religious diversity, which have beckoned traders for 3000 years.
• 1:30AM, Spike – Wild World of Spike: A demolition derby with mini bikes, a bike polo team, and boxing on a gigantic log.

Goodnight! Have a great weekend!