By James Hibberd
Updated October 05, 2012 at 03:22 PM EDT

Two new dramas and a beloved returning comedy were dealt unfortunate hands in the ratings Thursday night, but there were some bright spots for broadcast too.

The final season return of NBC’s 30 Rock performed quite poorly out of the gate. The Emmy-winning veteran comedy had only 3.4 million viewers and a 1.3 rating among adults 18-49 at 8 p.m. That’s down 28 percent from Rock‘s premiere last year and down 24 percent from last season’s premiere of Community in this space.

Meanwhile, the ratings for ABC’s Last Resort (7.9 million, 1.8) dive, dive, dived for its second episode. The action-drama was down 18 percent for Week 2. The other newbie on the grid, CBS’ Elementary (11.2 million, 2.6), dropped too — down 16 percent, but continued to win its time period.

Overall most shows dipped a bit this week, but CBS had some good news. The network was out in front overall Thursday night with Big Bang Theory (15.4 million, 4.9) and Two and a Half Men (12.7 million, 3.5) winning 8 p.m. The Ashton Kutcher comedy was an exception to the downward trend, climbing 6 percent this week despite its Big Bang lead-in getting a bit softer in the adult demo. Person of Interest (14.6 million, 3.1) was also up a tad. Not to be an Eeyore, but I should point out that with 9 p.m.’s Person of Interest rising it makes 10 p.m.’s new show Elementary declining more of a bummer.

Fox was second with X Factor (9.1 million, 3.1) down a tenth, followed by Glee (6.2 million, 2.6), up 8 percent.

ABC ranked third in the demo. In addition to Last Resort, the network had Grey’s Anatomy (10.6 million, 3.7) winning 9 p.m., yet falling 16 percent after last week’s strong return. Scandal (6.8 million, 2.1) was unchanged.

And that left NBC. Up All Night (3.1 million, 1.4) and The Office (4.1 million, 2.1) were unchanged from last week. But hey, Parks and Recreation (5.2 million, 1.9) jumped 19 percent this week. Just a few tenths higher and Parks would be NBC’s highest-rated Thursday night show…