One night after NBC saw its lowest-rated night of the London Games, audiences returned Tuesday as the net bounced back nicely on a night featuring gymnastics, track and field and beach volleyball.

According to preliminary national estimates from Nielsen, NBC’s primetime portion Tuesday averaged a big 9.3 rating/27 share in adults 18-49 and 29.6 million viewers overall. While down about 20% from last Tuesday’s averages , which was a day when Team USA won six gold medals , the Olympics grew 15% from Monday of this week and rose 11% above the comparable night from Beijing four years ago.

Univision again placed second among the broadcasters in adults 18-49 with its novelas ”Por Ella Soy Eva” (1.1/4 in 18-49, 3.0 million viewers overall), ”Abismo de Pasion” (1.4/4 in 18-49, 3.6 million viewers overall) and ”La Que No Podia Amar” (1.7/5 in 18-49, 4.4 million viewers overall), which is building toward its finale on Friday.

There was little happening on the other major networks Tuesday, with CBS airing repeats of ”NCIS” (1.0/3 in 18-49, 6.7 million viewers overall), ”NCIS: Los Angeles” (0.9/2 in 18-49, 5.3 million viewers overall) and ”Person of Interest” on a special night (0.8/2 in 18-49, 4.3 million viewers overall).

Fox went with back-to-back reruns of ”MasterChef” at 8 (0.9/3 in 18-49, 2.3 million viewers overall) and 9 (0.9/3 in 18-49, 2.4 million viewers overall). And at ABC, encores of ”The Middle” (0.7/2 in 18-49, 2.6 million viewers overall) and ”Last Man Standing” (0.6/2 in 18-49, 2.1 million viewers overall) were followed by a repeat of ”Wipeout” (0.9/2 in 18-49, 2.4 million viewers overall) and an original episode of docu-drama ”NY Med” (0.7/2 in 18-49, 2.8 million viewers overall).

And then there’s CW, whose original episode of ”The L.A. Complex” at 9 p.m. did a miniscule 0.1 rating/0 share in adults 18-49 and just 400,000 viewers overall.

Preliminary 18-49 averages for the night: NBC, 9.3/27; Univision, 1.4/4; NBC and Fox, 0.9/3; ABC, 0.7/2; CW, 0.2/1.

In total viewers: NBC, 29.6 million; CBS, 5.5 million; Univision, 3.7 million; ABC, 2.5 million; Fox, 2.4 million; CW, 0.5 million.