| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S13E01 | Episode 13.01 |
September 7, 2011
PBS
|
25 | |
| S13E02 | Episode 13.02 |
November 13, 2011
PBS
|
25 | |
| S13E03 | Episode 13.03 |
January 6, 2012
PBS
|
25 | |
| S13E04 | Episode 13.04 |
March 25, 2012
PBS
|
25 | |
| S13E05 | Episode 13.05 |
April 15, 2012
PBS
|
25 | |
| S13E06 |
Episode 13.06
season finale
|
May 13, 2012
PBS
|
25 |
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No artwork of this type.
No artwork of this type.