How It's Made (Season 4)

Season premiere: Tuesday, October 3, 2006
Season finale: Tuesday, March 27, 2007

Season 4 Episode 1: "Footballs / Electric Guitar Amplifiers / Marbles / Airplane Propellers"
Episode 79
Air date: Tuesday, October 3, 2006

Prod. code: 4-01

Video link:
• Footballs: Watch the full segment here (uploaded to the official Science Channel YouTube channel on Sunday, February 7, 2021; includes CC)

Season 4 Episode 2: "Engine Blocks / Jawbreakers / Drum Shells / Drums"
Episode 80
Air date: Tuesday, October 10, 2006

Writers: Linda Boyle, Max Harrold, Lynn Herzeg

Synopsis: Discover how engine blocks, jawbreakers and drum shells are constructed.

Prod. code: 4-02

Season 4 Episode 3: "Lighters / Fossils / Hockey Pucks / High-Pressure Cylinders"
Episode 81
Air date: Tuesday, October 17, 2006

Writers: Linda Boyle, Max Harrold, Lynn Herzeg

Prod. code: 4-03

Season 4 Episode 4: "Balloons / Wallpaper / Frozen French Fries / Incandescent Light Bulbs"
Episode 82
Air date: Tuesday, October 24, 2006

Prod. code: 4-04

Season 4 Episode 5: "Matches / Carousel Horses / Fine Porcelain / Automobile Fuel Tanks"
Episode 83
Air date: Tuesday, October 31, 2006

Prod. code: 4-05

Season 4 Episode 6: "Glass Cookware / Soap Bars / Steel Drums / Firefighter Uniforms"
Episode 84
Air date: Tuesday, November 7, 2006

Prod. code: 4-06

Season 4 Episode 7: "Crayons / Wooden Kayaks / Lawn Mowers / Gold Chains"
Episode 85
Air date: Tuesday, November 14, 2006

Prod. code: 4-07

Season 4 Episode 8: "Inflatable Safety Devices / Braille Typewriters / Carbon Fiber Cellos"
Episode 86
Air date: Tuesday, November 21, 2006

Prod. code: 4-08

Season 4 Episode 9: "Carbon Fiber Masts / Fortune Cookies / IMAX Projectors / Roller Chains"

Episode 87
Air date: Tuesday, November 28, 2006

Synopsis: Explore the secrets behind fortune cookies and IMAX projectors.

Prod. code: 4-09

Season 4 Episode 10: "Firefighter Helmets / Nautical Compasses / Packaging Tubes / Handsaws"
Episode 88
Air date: Tuesday, December 5, 2006

Prod. code: 4-10

Season 4 Episode 11: "Halogen Bulbs / Cellulose Insulation / Aluminum Ladders / Bamboo Fly Rods"
Episode 89
Air date: Tuesday, December 12, 2006

Prod. code: 4-11

Season 4 Episode 12: "Drill Bits / Photo Booths / Stamps"
Episode 90
Air date: Tuesday, December 19, 2006

Prod. code: 4-12

Season 4 Episode 13: "Yacht Wheels / Braided Rugs / Automobile Thermostats / Chisels"
Episode 91
Air date: Tuesday, December 26, 2006

Prod. code: 4-13

Season 4 Episode 14: "Photographs / Fur Tanning / Welding Electrodes / Electric Violins"
Episode 92
Air date: Tuesday, January 2, 2007
Writers: Linda Boyle, Max Harrold, Lynn Herzeg

Prod. code: 4-14

Season 4 Episode 15: "Glass Bottles / Hacksaws / Goalie Masks"
Episode 93
Air date: Tuesday, January 9, 2007
Writers: Linda Boyle, Max Harrold, Lynn Herzeg

Prod. code: 4-15

Season 4 Episode 16: "Lacrosse Sticks / Frozen Fish Products / Flashlights / Paintbrushes"
Episode 94
Air date: Tuesday, January 16, 2007

Prod. code: 4-16

Season 4 Episode 17: "Deep Cycle Batteries / Tins / Optical Lenses"
Episode 95
Air date: Tuesday, January 23, 2007

Prod. code: 4-17

Season 4 Episode 18: "Horseshoes / Dishwashers / Graphite Fly Rods / Frozen Pizzas"

Episode 96
Air date: Tuesday, January 30, 2007

Synopsis: Discover how horseshoes, dishwashers and frozen pizzas are made.

Prod. code: 4-18

Season 4 Episode 19: "Pistons / Paint Rollers / Parachutes / Chimneys"

Episode 97
Air date: Tuesday, February 6, 2007

Prod. code: 4-19

Season 4 Episode 20: "CO2 Cartridges / Pretzels / Scissor Lifts / Skating Rinks"

Episode 98
Air date: Tuesday, February 13, 2007

Synopsis: Discover how CO2 cartridges, pretzels and skating rinks are made.

Prod. code: 4-20
Description:
• Pretzels: Pretzels have long been considered good-luck symbols. More than $550 million worth of pretzels are sold in the United States annually.

Season 4 Episode 21: "Pro Hockey Sticks / Bronzed Baby Shoes / Treadmills / Handheld Computers"
Episode 99
Air date: Tuesday, February 20, 2007

Prod. code: 4-21

Season 4 Episode 22: "Motorcycles / Clay Pipes / Drum Sticks / Whistles"
Episode 100
Air date: Tuesday, February 27, 2007

Prod. code: 4-22

Season 4 Episode 23: "Handcuffs / Caulking and Joint Compound / Propane Tanks / Forensic Facial Reconstruction"
Episode 101
Air date: Tuesday, March 6, 2007

Prod. code: 4-23

Season 4 Episode 24: "Fur Coats / Hearses / Outdoor Lighting Fixtures / Golf Tees"
Episode 102
Air date: Tuesday, March 13, 2007

Prod. code: 4-24

Season 4 Episode 25: "Fishing Reels / Miniature Houses / Kitchen Mixers"
Episode 103
Air date: Tuesday, March 20, 2007

Prod. code: 4-25

Season 4 Episode 26: "Manhole Covers / Range Hoods / Artificial Logs / Snowmobiles"
Episode 104
Air date: Tuesday, March 27, 2007

Prod. code: 4-26