• by Wayne Friedman , May 24, 2018

CBS will easily take top honors for “Late Show with Stephen Colbert” in total average season viewers for the 2017-2018 TV season.

NBC will eke out a victory among key 18-49 viewers and take second place among total viewers with “The Tonight Show with Jimmy Fallon.”

Through 34 weeks, among all the 11:30 p.m. network broadcast talk shows, CBS’ “Late Show” is averaging a Nielsen 3.85 million viewers, while NBC’s “Tonight” is at 2.68 million and ABC’s “Jimmy Kimmel Live” comes in at 2.26 million.

Among 18-49 viewers, “Tonight” is at a 0.65 rating/4 share, while "Late Show" has a 0.59 rating/4 share and “Kimmel” has a 0.47/3.

At 12:30 a.m., NBC was tops in both total viewers and 18-49 viewers for “Late Night with Seth Meyers” -- coming in at 1.56 million viewers and a 0.38/3 rating among 18-49 viewers. ABC’s “Nightline” comes in at 1.39 million viewers and a 0.30/2 rating among 18-49 viewers, while CBS’ “Late Late Show with James Corden” has 1.39 million and a 0.28/2 in 18-49.

In national TV advertising revenue for the top broadcast shows -- May 23, 2017 to May 23, 2018 -- CBS’ “Late Show” came in at $381.4 million; NBC’s “Tonight” had $380.6 million; and ABC’s “Kimmel” had $323.1 million, according to iSpot.tv.