Stephen welcomes astrophysicist Neil deGrasse Tyson and a performance by comedian Emmy Blotnick.
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6.3 1993 HD
5.5 2003 HD
5.4 1992 HD
8 2019 HD
0 2024 HD
6.8 2010 HD
6.9 1975 HD
5.1 2019 HD
2 2003 HD
6.4 1996 HD
2 2001 HD
5 1992 HD
7.1 1993 HD
7 2010 HD
10 2016 HD
10 2018 HD
6 2009 HD
5.4 2014 HD
2 2018 HD
2 2014 HD
