All times Eastern.

• 6PM, National Geographic – Naked Science: Prehistoric Americans. High-tech forensic science reveals why some scientists believe that early pioneers arrived in America thousands of years earlier than was previously believed. (60 min)
• 6PM, G4 – Ninja Warrior: Sasuke 5: Part 1 (30 min)
• 6:30PM, G4 – Ninja Warrior: Sasuke 5: Part 2 (30 min)
• 7PM, TLC – Monster Garage: Full Steam Ahead. The team adds steam power to a Chris Craft wooden boat. (60 min)
• 7PM, Science Channel – How Do They Do It?: Phoenix Stadium; La Trade Tower; Surfing. Transforming a football stadium into a monster truck arena; demolition; building surfboards. (30 min)
• 7PM, Versus – Boxing (sports): 2007: Hasim Rahman vs. Taurus Sykes. Rahman battles Sykes; Jose Leonardo Cruz takes on Almazbek Raiymkulov for the NABF Lightweight title. From June 14, 2007 in Rochester, N.Y. (60 min)
• 7PM, Discovery Health – Impact: Stories of Survival: Propeller Smash. A man suffers multiple injuries in a crash; an airplane mechanic is sliced by a propeller; a boy is crushed underneath drywall; a woman tumbles down a mountain. (60 min)
• 7PM, Speed – Chop Cut Rebuild: No Sweat. The big reveal; Hot August Nights car show in Reno, Nev. (30 min)
• 7:30PM, PBS (NY 21) – Wild Chronicles: Leggy whales in Egypt’s desert; harbor seal courtship; BioBlitz; stopping the Sahara’s shifting sands. (30 min)

8PM and on after the jump!

• 8PM, Food Network – Good Eats: Your Pad or Mine: Thai. Thai food. (30 min)
• 8PM, G4 – X-Play: “Call of Juarez!,” “TrackMania” and “Planet Puzzle League.” (30 min)
• 8PM, TLC – American Hot Rod: ‘59 Corvette 1. The crew embarks on building a 1959 Corvette and a totally custom Bella Haye. (60 min)
• 8PM, FX – Alien vs. Predator (movie): Members of an expedition discover two vicious extraterrestrial races dueling to the death in the Antarctic.
• 9PM, Science Channel – Eco- Tech: Powering Up. Scientists develop new methods of sustainable energy. (60 min)
• 9PM, Food Network – Iron Chef America: Flay vs. Bull. Bobby Flay is challenged by David Bull. (60 min)
• 9PM, Comedy Central – Reno 911!: Dangle’s ex-wife visits while the deputies are trying to get rid of a Ten Commandments monument. (30 min)
• 9:30PM, ESPN2 – MLS Soccer (sports): Club Deportivo Chivas USA at Los Angeles Galaxy. (150 min)
• 10PM, Sundance – Live From Abbey Road: Josh Groban; Kasabian; The Good, The Bad, & The Queen (60 min)
• 10PM, Fuse – Halloween (movie): John Carpenter’s chiller about an escaped maniac who returns to his Illinois hometown to continue his bloody rampage. (120 min)
• 10PM, Food Network – Ace of Cakes: Wishes Granted. Cakes designed for children. (30 min)
• 10PM, Science Channel – How Do They Do It?: Cruise Liner; Satellite; Suspension Bridge. Repairing the hull of an 80,000-ton ship; keeping Europe’s longest suspension bridge from collapsing. (30 min)
• 10PM, PBS (NY 21) – Globe Trekker: Egypt. The bazaar of Khan al-Khalili in Cairo; the mosque at Ibn Tulun; Giza and the Great Pyramids; the oasis town of Siwa; Bahariyya. (60 min)
• 11PM, Comedy Central – The Daily Show With Jon Stewart: “Operation Silent Thunder: The Daily Show in Iraq.” (30 min)
• 11PM, Cartoon Network – Futurama: War Is the H-Word. Fry and Bender join the military for soldiers’ discounts. (30 min)
• 11:30PM, Comedy Central – The Colbert Report: Author Joe Klein. (30 min)