The night's top two original shows both matched their demo numbers from a week ago.

Big Brother kept its place atop Thursday night's ratings, and The Four tied its season high as it nears the end of its summer run.

With a 1.5 rating among adults 18-49, CBS' Big Brother comfortably led the night in the demo. It was even with last week's eviction episode and helped CBS to an across-the-board win in primetime.

The Four delivered a 0.9 for Fox with its next-to-last episode of the summer, matching last week's season high in the demo (it's still running about 33 percent below its first season in January and February).

After a one-week tryout at 8 o'clock, ABC's Take Two moved back to 10 p.m. and drew a 0.4, even with last week. Match Game (0.6) and The Gong Show (0.5) also held steady.

Trial & Error's two episodes on NBC came in at 0.5 and 0.4, each one falling a tenth of a point from a week ago.

CBS led the 18-49 demo for the night with a 1.0 rating, a little ahead of Fox's 0.9. ABC and NBC each averaged 0.5, and The CW is currently at 0.3, pending updates for a pre-emption in New York City.

In late night, the three 11:35 p.m. shows all earned 0.4 ratings in adults 18-49 in the metered markets. The Late Show with Stephen Colbert had the edge in households with a 2.4/7, while Jimmy Kimmel Live and The Tonight Show Starring Jimmy Fallon tied at 1.5/4.

Late Night with Seth Meyers (0.3) finished first at 12:35 a.m.; The Late Late Show with James Corden and Nightline tied at 0.2.