Monday night's broadcast of "The Bachelorette," the first part of the series' season finale, drew an average 7.77 million viewers and scored a 2.3 rating in the key 18-49 demographic, according to preliminary numbers from Nielsen, up 21% from last week.
A ratings point equals about 1.3 million viewers.
ABC followed up the two-hour broadcast with "Mistresses," which also increased viewers and ratings.
ABC beat CBS for the night. ABC average viewership was 6.56 million, with a 18-49 rating of 2.
CBS's "Under the Dome" fell in ratings this week. It was still the most-watched and highest rated show of the night, with 11.1 million viewers and a rating of 2.7 in 18-49.
The show, which follows a small town trapped under a transparent dome, was down about 4% from its previous week rating, matching its low from the series.
Fox was in all repeats Monday night.