All times Eastern.

• 6PM, History Channel - Engineering an Empire: Da Vinci’s World. The architectural and engineering achievements of Renaissance Italy are explored, including those of military and civil engineers.

• 7PM, Food Network - Good Eats: Yogurt: Good Milk Gone Bad. Alton makes yogurt from scratch.
• 7PM, History Channel - Modern Marvels:Da Vinci Tech. Examining Leonadro Da Vinci’s mechanical creations and ideas formulated and recorded in his notebooks.
• 8PM, PBS - Nova: Kings of Camouflage. A look at the chameleonlike cuttlefish, which changes colors and even its shape to blend in with its surroundings.

9PM on after the jump

• 9PM, Discovery Channel - Deadliest Catch: A Tragic Beginning. The third season opens at the end of red-king-crab season. Captains and crews are on the Bering Sea fishing for opilio crab in subzero arctic weather, 60-mph winds and turbulent seas, forcing deckhands top spend hours clearing ice with sledgehammers.
• 9PM, History channel - Ancient Discoveries: Ships. The Lake Nemi ships, large Roman vessels that were salvaged from the lake in the 1930s and burned in 1944, are discussed. Included: technological discoveries from the ships.
• 9PM, National Geographic Channel - Explorer: World’s Most Dangerous Drug. An in-depth look at the dangers of methamphetamine, a highly addictive drug commonly found in both rural and city environments. Examines it’s far reaching influence,from rural America to Bangkok, Thailand. Included: scientific look at meth’s addictive powers; the WWII origins; interviews with addicts and law enforcement.
• 9:30PM, Food Network - Throwdown with Bobby Flay: Fish & Chips. A fish-and-chips challenge with Mat Arnfield of NYC’s acclaimed A Salt & Battery.
• 10PM, Biography Channel - Breaking Vegas: The Ultimate Cheat. A profile of Richard Marcus, who revealed his exploits in his book”American Roulette”.
• 10PM, Discovery Channel - Rouge Nature: Bears. Debut: Dangerous animals are examined. First up: Encounters with grizzly bears.
• 11PM, Biography Channel - Biography: Bugsy Siegel: gambling on the Mob. “The real-life gangster who came the closest to being a movie star” in Hollywood and Las Vegas. Before that, Siegel was a mainstay of New York’s “Murder Inc.” included: Siegel’s disastrous stewardship of Las Vegas’s Flamingo Hotel.