Monday, January 21, 2013 ratings — New episodes: The Following, Bones, How I Met Your Mother, 2 Broke Girls, Mike & Molly, Hawaii Five-0, The Bachelor, Castle, The Biggest Loser, Deception, 90210, and The Carrie Diaries. Episode reruns: The Big Bang Theory.

ABC
8pm – The Bachelor: 2.5 in the demo (0% change) with 7.48 million.
10pm – Castle: 2.0 in the demo (+5% change) with 8.72 million.

CBS
8pm – How I Met Your Mother: 3.7 in the demo (-5% change) with 10.09 million.
8:30pm – The Big Bang Theory: (rerun) 3.2 in the demo with 10.45 million.
9pm – 2 Broke Girls: 3.7 in the demo (-10% change) with 11.47 million.
9:30pm – Mike & Molly: 3.3 in the demo (-6% change) with 10.85 million.
10pm – Hawaii Five-0: 2.2 in the demo (-46% change) with 9.58 million.

The CW:
8pm – The Carrie Diaries: 0.5 in the demo (-17% change) with 1.28 million.
9pm – 90210: 0.4 in the demo (-33% change) with 0.79 million.

FOX
8pm – Bones: 2.3 in the demo (+10% change) with 8.47 million.
9pm – The Following: (series premiere) 3.1 in the demo with 10.38 million.

NBC
8pm – The Biggest Loser: 2.4 in the demo (0% change) with 6.07 million.
10pm – Deception: 1.3 in the demo (-19% change) with 3.61 million.

Notes: Above are the fast affiliate ratings. The “demo” refers to the viewers in the 18-49 demographic. The percentages represent the change since the previous original episode. (Percentages aren’t given for reruns or specials.) “Million” refers to the total number of viewers.

To see past ratings for a particular show, click the show’s link. The show pages are updated with the daily final ratings when they become available. Those pages include percentage changes in both the demo and total viewership, in addition to season averages to date.

Here are the show season averages, grouped by network: ABC | CBS | CW | FOX | NBC

What were you watching last night? The series premiere of The Following, originals on the other networks, or something even better?