All times Eastern.

• 6PM, History Channel - Modern Marvels: World War I Tech. World War I is the first lethal combination of Industrial Age technology and war on a large scale. (60 min)
• 6PM, Science Channel - Hot Rocks: Salt. The crucial role of salt in geology. (60 min)
• 6PM, G4 - Ninja Warrior: Sasuke 8: Part 3 (30 min)
• 6PM, Discovery HD - Space Balloons: 120,000 Feet Above Earth: Scientific ballooning is an efficient and economic method of conducting research in space. (60 min)
• 6:30PM, G4 - Ninja Warrior: Sasuke 9: Part 1 (30 min)
• 7PM, Discovery Channel - MythBusters: Superhero Hour. Hosts put Marvel Comics’ superheroes to the test. (60 min)
• 7PM, Discovery Health - Impact: Stories of Survival: Canyon Crash. Water-skiing accident; teenager drives his truck off a cliff. (60 min)
• 7PM, Speed - Chop Cut Rebuild: Suspensions Upgrade - Engines Teardown. Installing the Impala’s rear suspension; full teardown of the Bricklin’s engine. (30 min)
• 7:30PM, CBS - NFL Preseason Football (sports): New York Jets at Philadelphia Eagles (180 min)
• 7:30PM, NBC - NFL Preseason Football (sports): New York Giants at New England Patriots (180 min)

8PM and on after the jump! (Sorry there wasn’t a listing yesterday!)

• 8PM, History Channel - Super Tools: Ship. Aircraft-carrier construction utilizes plasma beveling cutters, robotic welders and pneumatic drills. (60 min)
• 8PM, Food Network - Good Eats: Olive Me. Olives. (30 min)
• 8PM, G4 - X-Play: “Dreamlords”; “Dragonball Z: Shin Budokai”; “Enchanted Arms.” (30 min)
• 8PM, FX - Independence Day (movie): A fighter pilot, a computer whiz and others fight back after 15-mile-wide alien ships zap Earth’s major cities. (180 min)
• 8PM, National Geographic - Spies, Lies and the Superbomb: The A-Bomb Spy. Superspy and physicist Klaus Fuchs, providing nuclear bomb secrets to the Soviet Union, launches the world on the path of nuclear proliferation. (60 min)
• 9PM, Food Network - Iron Chef America: Cora vs. Simon: Hamburger. Cat Cora and challenger Kerry Simon battle over hamburger. (60 min)
• 9PM, National Geographic - Spies, Lies and the Superbomb: The H-Bomb. During the Cold War, Americans and Soviets race to create a hydrogen bomb, but Robert Oppenheimer recognizes its horrific potential and tries to stop its development. (60 min)
• 9PM, Sundance - John Safran vs God Mormon underwear; Australian soccer team curse; biblical code. (30 min)
• 9PM, HBO2 - Flight of the Conchords: The Actor. Bret and Jemaine enlist an actor to cheer up Murray after a disappointing gig. (30 min)
• 10PM, Food Network - Ace of Cakes: Stadium Games and Eating Brains. Stadium cakes; zombie-themed cake. (30 min)
• 10PM, Science Channel - How Do They Do It?: Vehicles; Deep Mine; Ultimate Football. Unmanned aerial vehicles combat crime; undersea potash mine. (30 min)
• 10PM, National Geographic - Spies, Lies and the Superbomb: Missile Crisis. Soviet Col. Oleg Penkovsky provides intelligence to the U.S. during the 1962 Cuban Missile Crisis, when nuclear war is imminent. (60 min)
• 10PM, Sundance - Live From Abbey Road: Corinne Bailey Rae; Paul Simon; Primal Scream. (60 min)