On day three of the new “Nightline” time, the show placed first across all the target demos. It was the first win among A18-49 viewers, which is the key late night demographic, in the 12:35amET timeslot.

ABC’s wins in the A25-54 and A18-49 demographics were the largest margins over NBC and CBS yet for the show at 12:35amET. Year-over-year gains were strong, too: compared to ABC’s performance in the same timeslot last year, “Nightline” was up +28% in Total Viewers, +31% in the A25-54 demographic and +41% in the A18-49 demographic.

ABC’s ratings are based on a 30-minute broadcast, while CBS and NBC are based on approximately :50 minutes (prior to the final national commercial break of each program).

• Averages for 12:35am January 11, 2013:
  

Show	Network	Total Viewers	A25-54	A18-49
Nightline	ABC	1.950M	992K	751K
Late Late Show with Craig Ferguson	CBS	1.534M	669K	510K
Late Night with Jimmy Fallon	NBC	1.472M	651K	572K