Bill Hammack explores the world of engineering
| Season | From | To | Episodes |
|---|---|---|---|
| All Seasons | |||
| Specials | March 2012 | March 2023 | 11 |
| Season 2010 | September 2010 | December 2010 | 9 |
| Season 2011 | February 2011 | June 2011 | 6 |
| Season 2012 | May 2012 | June 2012 | 8 |
| Season 2014 | June 2014 | November 2014 | 16 |
| Season 2015 | February 2015 | December 2015 | 8 |
| Season 2016 | May 2016 | June 2016 | 8 |
| Season 2017 | August 2017 | 1 | |
| Season 2018 | January 2018 | October 2018 | 3 |
| Season 2019 | May 2019 | 1 | |
| Season 2023 | May 2023 | May 2023 | 4 |
| Season 2024 | May 2024 | 1 | |
| Season 2025 | April 2025 | 1 | |
| Unassigned Episodes | 17 |
| Season | From | To | Episodes |
|---|---|---|---|
| Unassigned Episodes | 94 |
| Season | From | To | Episodes |
|---|---|---|---|
| Season 1 | 0 | ||
| Unassigned Episodes | 94 |
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