TMDb
5.2
Returning Series
PBS
Documentary
English
United States of America
2012
6.8
2010
7.6
1997
7.4
1999
1989
7.5
2016
8.6
2008
8.9
2019
8.7
2011
8.5
2022
8.4
2013
2021
7.9
2007
8.1
2006
8.2
2024
8.3
8.0
6.0
2015
2018
0.0
2020
10.0
2014
6.9
9.0
2017
