By T.V Ratings Blog for 10/30/17

                                             
Supergirl's 10/30 episode was called "The Faithful". It was a *** episode.
                                               1.82 million viewers
Look at the numbers
10/9 episode 1.87 million+
10/16 episode 1.76 million-
10/23 episode 1.76 million-
10/30 episode 1.82 million
                                             
Kevin Can Wait's 10/30 episode was called "The Owl". It was a **1/2 episode.
                                   6.35 million viewers
Look at the numbers
9/25 episode 10.26 million+
10/2 episode 6.65 million
10/9 episode 6.01 million
10/16 episode 5.96 million-
10/23 episode 6.11 million
10/30 episode 6.35 million
                                              
9JKL's 10/30 episode was called "The Key to Life". It was a **1/2 episode.
                                             5.05 million viewers (series low)
Look at the numbers
10/2 episode 8.21 million+
10/9 episode 7.04 million
10/16 episode 6.66 million
10/23 episode 7.17 million
10/30 episode 5.05 million-
                                          
The Brave's 10/30 episode was called "The Seville Defection". It was a **1/2 episode.
                                   4.55 million viewers (series low)
Look at the numbers
9/25 episode 5.96 million+
10/2 episode 5.17 million
10/9 episode 5.14 million
10/16 episode 4.97 million
10/23 episode 5.19 million
10/30 episode 4.55 million-