The Big Bang Theory continues to dominate Thursday nights, while the CW's new show Reign premiered to decent numbers for the network.

CBS won the night in both the key 18-49 demo and total viewership, Zap2It reports. The network averaged 10.7 million viewers and a 2.6 rating. Theory was at the forefront with 17.2 million viewers and a 4.9 rating. The Crazy Ones was up slightly to 2.1, while The Millers drew in a rating of 3.2. Elementary dropped to a 1.6 rating.

According to The Hollywood Reporter, ABC lagged behind CBs with its shows. Once Upon a Time in Wonderland dropped from its low premiere to a 1.2 rating, while Grey's Anatomy slipped to a 2.6. Scandal remained strong, growing to a 3.3 rating. The network averaged 7.5 million viewers for the evening with a 2.4 rating.

Fox's coverage of MLB's ALCS Game 5 between the Boston Red Sox and Detroit Tigers continued to increase from last year. The game was up 41 percent to average a 2.4 rating in the demo.

NBC saw some increase for the night, which is always good news for its weak Thursday night numbers. Parks and Recreation increased in the demo slightly to a 1.3. Welcome to the Family and Sean Saves the World were both up to 0.9 and 1.1, respectively. The Michael J. Fox show managed to halt its slide to hold at 1.2. Parenthood was also up slightly to 1.3. The network brought in 3.4 million viewers for the night and a 1.2 demo.

The CW saw numbers up slightly for The Vampire Diaries at a 1.3, which helped it beat NBC and ABC in the time slot. New show Reign didn't get much of a lead-in boost, drawing only a 0.8 in the rating. The network averaged 2.4 million viewers and a 1.0 rating in the demo.

image: CBS