Times and listings are subject to change.
July 23: 8 p.m. EDT
The History Channel's "Modern Marvels: Doors" includes details on blast, bulletproof and revolving doors and ejection seats.
July 26: 8:30 p.m. EDT
Current TV's "Hot Rides and Cool Whips" covers a wheel-stand competition offering $20,000 to the driver who catches the most air.
July 27: 10 a.m. EDT
The Science Channel's "Colossal Construction: Incheon Bridge" details the construction of the Incheon Grand Bridge in South Korea.
July 28: 5 p.m. EDT
The Military Channel's "Weaponology: Bomber" chronicles eight decades from the invention of powered flight to the B2 Stealth bomber.
July 29: 8 p.m. EDT
The National Geographic Channel's "America's Secret Weapon" reveals the latest generation of defense technologies, including unmanned aerial vehicles and hypersonic aircraft.
July 30: 9 p.m. EDT
BBC America's "Top Gear: Season 6, Episode 6" pits the Mercedes McLaren SLR against a boat.
