Image Credit: Bob D’Amico/ABC; Monty Brinton/CBS; Douglas GorensClearly, viewers have yet to decide what shows they want to commit to this fall: After an auspicious premiere week, the CBS comedies took a hit in the key demographics on Thursday and NBC’s The Office posted its lowest rating among adults 18-49. Grey’s Anatomy on ABC rang in with its lowest-rated fall telecast ever for the second week in a row, and NBC’s The Apprentice is still on the brink of cancellation – if not a much-needed move to another night.

First, some good news for Fox. Dramas Bones (2.6 rating/8 share) and Fringe (2.0/5) actually posted single-digit gains among adults 18-49 versus the previous week and are keeping the network competitive on a tough night for broadcast (each 18-49 ratings point represents 1.3 million viewers). In total viewers, Bones averaged 9.13 million and came in second for its timeslot while Fringe averaged 5.15 million and came in fourth. Overall, the network ended up in third place for the night in viewers (7.17 million) and adults 18-49 (2.3/7).

CBS still dominated the night in adults 18-49 (3.0/9) and viewers (12.5 million). Though it dipped in the key demo, Big Bang Theory won its timeslot among men and women and viewers (12.4 million), as did $#*! My Dad Says (9.7 million), and The Mentalist (14.2 million). CSI (12.29 million), however, was overshadowed by Grey’s Anatomy (12.45 million), which still took the 9 p.m. timeslot in adults 18-49 and viewers.

ABC was second for the night among adults 18-49 (2.9/8) and viewers (8.24 million).

It was another tough evening for NBC. Community only averaged 4.29 million, followed by 30 Rock (4.91 million), The Office (6.89 million) and Outsourced (5.23 million). At least three of those comedies have ongoing support from critics. Nothing seems to be propping up the latest installment of The Apprentice, which only averaged 3.75 million and was one of the show’s lowest rated-telecasts ever among adults 18-49 (a mere 1.3/4). Somebody put The Donald out of his misery!

Overall, NBC finished the night fourth in viewers (4.80 million) and 18-49 (2.1/6). As for the CW, The Vampire Diaries showed some gains in women 18-34 and women18-49 versus the previous week and averaged 3.5 million – its second-largest audience this season. It won its timeslot among female teens. Nikita also built from the previous week in women and added 11% more viewers, averaging a total of 3.0 million.