All times Eastern.

• 6PM, Discovery Channel – How It’s Made: Conga drums; metal plating; buttons.
• 6PM, VH1 – And You Don’t Stop: 30 Years of Hip Hop: Back in the Day. The birth of hip hop establishes four elements of hip hop culture.
• 6PM, Travel Channel – Tornado Chasers: A group of adventurers hunts for one of nature’s most violent, yet impressive, phenomena.
• 6PM, Discovery HD – SEMA: The World’s Greatest Car Show: The SEMA car show at the Las Vegas Convention Center.
• 6:30PM, Discovery Channel – How It’s Made: Drill bits; photo booths; stamps.
• 6:30PM, DIY – Solar Solutions: Photovoltaic panels.
• 7PM, Food Network – Good Eats: Power Trip. Nutritional food.
• 7PM, VH1 – And You Don’t Stop: 30 Years of Hip Hop: Bring the Noise. Hip hop evolves from obscure to phenomenon; the rise of Def Jam.
• 7PM, Science Channel – Neanderthal: The Rebirth: The discovery of the first Neanderthal bones poses fundamental questions for scientists.
• 7PM, Speed – Chop Cut Rebuild: Smell My Paintgun. Painting the Ford ‘35 body; the Camaro team works on the axle and wheel design.
• 7:30PM, PBS (NY 21) – Wild Chronicles: A newly discovered species of lemur in Madagascar; whale sharks; a 100-mile, 24-hour endurance horse-race; bats.

8PM and on after the jump!

• 8PM, CBS – Creature Comforts: Winter; The Zoo. Creatures discuss how they feel about winter and the zoo.
• 8PM, Discovery Channel – Oil, Sweat and Rigs: Doyon. A group of men struggles to bring oil out of a frozen wasteland before the ice melts.
• 8PM, VH1 – And You Don’t Stop: 30 Years of Hip Hop: Gangsta Gangsta. New York’s socially conscious rap counters Los Angeles’ gangsta rap.
• 8PM, G4 – X-Play: “Heatseeker”; “Odin Sphere.”
• 9PM, VH1 – And You Don’t Stop: 30 Years of Hip Hop: Life After Death. The rap war forms from a rivalry between Death Row Records and Bad Boy Records; the murders of Tupac Shakur and Biggie Smalls.
• 9PM, Discovery HD – Tank Overhaul: The Comet. The team rescues a 1945 Comet tank from an Army firing range and works to restore it to working order for Tank Fest 2006.
• 9PM, Travel Channel – Bizarre Foods With Andrew Zimmern: Ecuador.
• 9PM, Speed – Back in the Day: 1974 Daytona 500. (mmm, jumpsuits.)
• 10PM, VH1 – And You Don’t Stop: 30 Years of Hip Hop: My Name Is … Hip hop emerges from cities other than New York and Los Angeles.
• 10PM, Travel Channel – Anthony Bourdain: No Reservations: Visiting Ghana.
• 10PM, Military Channel – Weaponology: Frags, Pineapples and RPGs. Portable firepower helps small infantry units pack a powerful punch.
• 10PM, Discovery HD – Comet Collision!: NASA launches a spacecraft designed to fly directly into a comet.
• 11PM, History Channel – Cannibalism Secrets Revealed: The topic of cannibalism causes revulsion.
• 11PM, Discovery Channel – MythBusters: Killer Whirlpool. Whirlpools; snowplows burying people.
• 11PM, Discovery Health – Tourette’s Syndrome: Uncensored: The disorder causes involuntary movements and noises.
• 11PM, Comedy Central – Daily Show: Steve Carell, actor “Evan Almighty” and NBC’s “The Office”
• 11:30PM, Comedy Central – The Colbert Report: Toby Keith, performing song off his new album “Big Dog Daddy”