NBC's TONIGHT SHOW Matches 18-Month High for a Monday

Monday's "Tonight Show Starring Jimmy Fallon" matched the show's highest metered-market household rating for a Monday (3.2) in 18 months (since March 24, 2014, 3.4). The last time "Tonight" equaled last night's 3.2 on a Monday was March 2, 2015.

Dominated the time period, +28% vs. Colbert (3.2 vs. 2.5) and +68% vs. Kimmel (3.2 vs. 1.9).

Doubled Colbert and beat the combined Colbert-Kimmel rating in 18-49 in the local people meters (1.2 vs. a combined 1.0; 0.6 for Colbert, 0.4 for Kimmel).

Jumped +19% above its 2014-15 season average prior to Colbert's debut (3.2 vs. 2.7).

Jimmy Fallon's guests Monday included Carly Fiorina, Ryan Reynolds and musical guest Shawn Mendes.

Monday's "Late Night with Seth Meyers": Scored "Late Night's" highest metered-market household rating for a Monday (1.4) in six months (since March 2, 1.6).

Rose +17% above its summer average through Sept. 7 (1.4 vs. 1.2).

Seth Meyers' guests Monday included Wesley Snipes, Randall Park and Martha Stewart.

In Nielsen's 56 metered markets, household results were: "The Tonight Show Starring Jimmy Fallon," 3.2/8; "Late Show with Stephen Colbert," 2.5/7; and ABC's "Jimmy Kimmel Live," 1.9/5.

In the 25 markets with Local People Meters, adult 18-49 results were: "The Tonight Show Starring Jimmy Fallon," 1.2/6; "Late Show," 0.6/3; and "Jimmy Kimmel Live," 0.4/2.

From 12:35-1:05 a.m. ET, ABC's "Nightline" averaged a 1.2/4 in metered-market households and a 0.3/2 in 18-49 in the Local People Meters.

From 12:35-1:35 a.m. ET, "Late Night with Seth Meyers" (1.4/5 in metered-market households) beat CBS's "Late Late Show" (1.0/4). In the 25 markets with Local People Meters, "Late Night" (0.5/4 in 18-49) topped "Late Late Show" (0.2/2).

At 1:35 a.m., "Last Call with Carson Daly" averaged a 0.8/4 in metered-market households and a 0.3/3 in adults 18-49 in the 25 markets with local people meters.