Specials
Artwork
| # | Image | Title | Aired |
|---|---|---|---|
| 1 |  | Unaired Pilot | Sep 24, 2007 |
| 2 | Access All Areas | Apr 5, 2012 | |
| 3 | It All Started With A Big Bang | Apr 5, 2012 | |
| 4 |  | Comic-Con 2015 Writers Panel | Jul 10, 2015 |
| 5 |  | Comic-Con 2016 Writers Panel | Aug 18, 2016 |
| 6 |  | Unraveling the Mystery: A Big Bang Farewell | May 16, 2019 |