Ratings Chart Attack!

After an unexpectedly disappointing return from ABC’s lineup last Thursday, the trend continues as “Ugly Betty” and “Grey’s Anatomy” chalked up series lows in the 18- to 49-year-old demographic.

Even with a guest appearance by “Project Runway” winner Christian Siriano, “Betty” scored a 2.4 rating/7 share, according to preliminary Nielsen ratings, a tick down from last week. “Grey’s” dipped 8% from last week to a 6.0/15. After bottoming out last week, both shows pushed the needle down further this week. Despite that, however, “Grey’s” was the highest-rated show of the night.

“Lost” dropped 9% to a 4.8/13. ABC placed first for the night with a 4.4/12.

CBS’ (4.1/11) “Survivor” (4.0/12) slipped 7% from last Thursday. “CSI” gained ground to the tune of 6%, ending with a 5.0/13. “Without a Trace” stayed flat with a 3.3/9.

NBC’s (3.0/8) “My Name Is Earl” rebounded from a series low last week, up 17% to a 2.8/9. “Scrubs” (2.9/8) and “30 Rock” (2.6/7) were around average, while “The Office” dipped a tick (3.9/10) for its second consecutive season low.

“Are You Smarter Than a 5fth Grader?” (2.2/7) kicked up slightly from last week, while “Don’t Forget the Lyrics” was average (2.5/6). Fox finished fourth with a 2.3/6.

The CW’s (1.3/3) “Supernatural” (1.0/3) and “Smallville” (1.5/5) were flat.