Season
- Season 1 1993-12-10
- Season 2 1994-12-16
- Season 3 1995-08-20
- Season 4 1996-09-02
- Season 5 1997-08-17
- Season 6 1998-07-27
- Season 7 2000-01-03
- Season 8 2001-01-08
- Season 9 2002-01-02
- Season 10 2003-01-01
- Season 11 2004-01-16
- Season 12 2005-01-05
- Season 13 2006-01-04
- Season 14 2007-01-17
- Season 15 2008-01-07
- Season 16 2010-01-14
- Season 17 2010-10-29
- Season 18 2011-10-03
- Season 19 2013-07-16
- Season 20 2021-02-20
- Season 21 2021-07-25
- Season 22 2021-11-28
- Season 23 2022-02-16
Season 23 Episode
- Season 19 Mega Speed Countdown
- Season 19 Mega Machine Countdown
- Season 19 Mega Weapon Countdown
- Season 19 Mega Food Countdown
- Season 19 Mega Snack Countdown
- Season 19 Super Strong Countdown
- Season 19 Amazing Job Countdown
- Season 19 Strangest Countdown
- Season 19 Hottest Rides Countdown
- Season 19 Amazing Gadgets Countdown
- Season 19 Panama Canal Supersized
Modern Marvels - Season 19 Episode 2 Mega Machine Countdown
7.97 44 minutes Modern Marvels is going big, and counting down. We take the "best of" Modern Marvels and give you the MEGA Top 10 countdown. On this edition: Awe-Inspiring Machines–featuring the top ten mightiest, strangest, and most unique innovations from our archives.
