The Greatest Canadian Invention

The Greatest Canadian Invention is a spiritual sequel to The Greatest Canadian originally aired on CBC Television. It began with CBC viewers voting online on which invention (out of 50) they considered to be the greatest Canadian invention. The show is a two-hour special, hosted by Bob McDonald, that premiered on 3 January 2007 at 8:00 EST.

Commentators
The 22 commentators for the show are:
 * Margaret Atwood – Writer and inventor of the LongPen
 * Buck 65 – Hip hop musician
 * Jackie Duffin – Medical History professor at Queen's University
 * Will Ferguson – Author and Humorist
 * Danielle Goyette – Hockey player and Olympic gold medallist
 * Chris Hadfield – Astronaut
 * Mike Holmes – Home renovation specialist, TV host of Holmes on Homes
 * Mike Lazaridis – President of Research In Motion; inventor of the BlackBerry
 * Preston Manning – Trustee of the Manning Innovation Awards
 * Patrick McKenna – Comedian and actor
 * Miriam McDonald – Actress and star of Degrassi: The Next Generation
 * Mitsou – Singer and CBC TV host
 * Steve Nash – Basketball player, 2 time NBA MVP
 * Kathryn O'Hara – Professor of Science Journalism at Carleton University
 * Abena Otchere – Science education advocate and medical student
 * Drew Hayden Taylor – Playwright and columnist
 * Debbie Travis – Home decoration specialist and TV host of Painted House
 * Vikram Vij – Chef/restaurateur and cookbook author
 * Michael Winter – Writer
 * Ronald Wright – Writer
 * Judy Cornish & Joyce Gunhouse (Comrags) – Women's clothes fashion designers

Inventions
The inventions, in voted order, are: