With help from the second-to-last episode of “Biggest Loser” and a “Dateline” featuring former Scott Petersen girlfriend Amber Frey, NBC’s new Tuesday comedy “Committed” did better in the adults 18 to 49 demographic than former time period resident “Scrubs.”

At 9:30 p.m. (ET), “Committed” scored a 4.5 rating in the demo, according to Nielsen Media Research. That was 29 percent higher than “Scrubs'” average, and a 94 percent retention of its “Biggest Loser” lead-in.

That still wasn’t enough to beat the night’s big winner, ABC’s three-hour-plus telecast of the Orange Bowl, which scored a 7.4/19 in the demo. “Committed” also couldn’t get past CBS’s “Amazing Race,” which scored a 4.4 rating in adults 18 to 49 for the 9 p.m. hour and edged past NBC in the 9:30 p.m. half-hour with a 4.7.

ABC won Tuesday night in adults 18 to 49 with a 7.9, followed by NBC (3.5), CBS (3.2), Fox (1.9), UPN (1.3) and The WB (1.2).

Christopher Lisotta