| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S12E01 | 1201 |
November 23, 2016
PBS
|
26 | |
| S12E02 | 1202 |
November 30, 2016
PBS
|
26 | |
| S12E03 | 1203 |
December 7, 2016
PBS
|
26 | |
| S12E04 | 1204 |
December 14, 2016
PBS
|
26 | |
| S12E05 | 1205 |
December 21, 2016
PBS
|
26 | |
| S12E06 | 1206 |
December 28, 2016
PBS
|
27 | |
| S12E07 | 1207 |
January 4, 2017
PBS
|
27 | |
| S12E08 | 1208 |
January 11, 2017
PBS
|
27 | |
| S12E09 | 1209 |
January 18, 2017
PBS
|
27 | |
| S12E10 | 1210 |
January 25, 2017
PBS
|
27 | |
| S12E11 | 1211 |
February 1, 2017
PBS
|
26 | |
| S12E12 | 1212 |
February 8, 2017
PBS
|
26 | |
| S12E13 | 1213 |
February 15, 2017
PBS
|
26 | |
| S12E14 | 1214 |
February 22, 2017
PBS
|
26 | |
| S12E15 | 1215 |
March 1, 2017
PBS
|
26 | |
| S12E16 | 1216 |
March 8, 2017
PBS
|
27 | |
| S12E17 | 1217 |
March 22, 2017
PBS
|
26 | |
| S12E18 | 1218 |
March 29, 2017
PBS
|
26 | |
| S12E19 | 1219 |
April 5, 2017
PBS
|
26 | |
| S12E20 |
1220
season finale
|
April 12, 2017
PBS
|
26 |
No artwork of this type.
No artwork of this type.
No artwork of this type.