TV Ratings: 'Big Brother' Leads, 'Astronauts' Rises, 'Dome' Hits Low

Big Brother, Eviction 3 - H 2015

Big Brother, Eviction 3 - H 2015

A steady episode of Big Brother helped drive CBS to another Thursday win among the broadcast networks. Averaging a 2.0 rating among adults 18-49, the reality show was also the night's top performer.

It did not aid lead-out Under the Dome. The drama dipped two-tenths of a point to a new series low in live-plus-same-day ratings, a 0.9 in the key demo.

ABC saw Astronaut Wives Club rise two-tenths of a point, fetching a 1.0 rating in the key demo, while Mistresses (0.8 adults) and Rookie Blue (0.7 adults) were flat.

Fox was also steady, airing original episodes of Boom (0.7 adults) and Wayward Pines (0.9 adults).

The CW's Dates continued its 0.1-rated streak with back-to-back episodes after a new Beauty and the Beast (0.3 adults).