Thursday Results:

* At 8 p.m. ET, an encore telecast of "The Office" averaged a 0.7/2 in 18-49 and 2.6 million viewers overall. Pending updates, this is the top 18-49 rating for "The Office" since May 31 and a summer high in total viewers.

* At 8:30 p.m. ET, a rebroadcast of "Parks and Recreation" delivered a 0.6/2 in 18-49 and 2.1 million viewers overall. Pending updates, "Parks" is matching its summer high in 18-49 rating and generating a new summer high in total viewers.

* At 9 p.m. ET, "Saving Hope" (0.6/2 in 18-49, 2.9 million viewers overall) is currently reporting its highest 18-49 rating since June 28. "Saving Hope" is currently showing a half-hour to half-hour gain of 7 percent in total viewers (to 2.9 million from 2.7 million). Compared with NBC's total-viewer average in the time period last summer, "Saving Hope" is up 23 percent (2.863 million vs. 2.331 million, L+SD non-sports).

* At 10 p.m. ET, "Rock Center" (0.8/2 in 18-49, 3.7 million viewers overall) is currently showing week-to-week gains of 14 percent in 18-49 rating (to a 0.8 from a 0.7) and 9 percent in total viewers (3.732 million vs. 3.425 million). "Rock Center" is currently growing from its first half-hour to its second by 13 percent in adults 18-49 (to a 0.9 rating from a 0.8), 9 percent in adults 25-54 (1.2 vs. 1.1) and 5 percent in total viewers (3.8 million vs. 3.6 million). Versus its lead-in, "Rock Center" was up 25 percent in 18-49, 38 percent in 25-54 (1.1 vs. 0.8) and 30 percent in total viewers. Compared with NBC's total-viewer average in the time period last summer, "Rock Center" is up 45 percent (3.732 million vs. 2.579 million, L+SD non-sports).

In Late-Night Metered Markets Thursday night:

* In Nielsen's 56 metered markets, household results were: "The Tonight Show with Jay Leno," 2.5/6; CBS's "Late Show with David Letterman," 1.7/4; and ABC's combo of "Nightline," 2.9/7; and "Jimmy Kimmel Live," 1.6/5.

* In the 25 markets with Local People Meters, adult 18-49 results were: "The Tonight Show with Jay Leno," 0.7/3; "Late Show," 0.5/2; "Nightline," 1.0/4; and "Jimmy Kimmel Live," 0.6/3.

* At 12:35 a.m., "Late Night with Jimmy Fallon" (1.3/4 in metered-market households) beat CBS's "Late Late Show with Craig Ferguson" (0.9/3). In the 25 markets with Local People Meters, "Late Night" (0.5/3 in 18-49) topped "Late Late Show" (0.3/2).

* At 1:35 a.m., "Last Call with Carson Daly" averaged a 0.8/3 in metered-market households with an encore and a 0.3/2 in adults 18-49 in the 25 markets with local people meters.

NOTE: All ratings are "live plus same day" from Nielsen Media Research unless otherwise indicated.