NBC prevailed among the broadcasters in key demo categories Tuesday as ”America’s Got Talent” continues its reign as early-summer’s top series. The net’s return of ”Love in the Wild” produced modest results, though, as did ABC’s ”Concert for the Queen” special.

ESPN was expected to easily win the night with its coverage of the nail-biter Game 5 of the NBA Eastern Conference Finals between the Boston Celtics and Miami Heat, though preliminary ratings info wasn’t available.

According to national estimates from Nielsen, NBC’s ”America’s Got Talent” comfortably stood as the top-rated broadcast program on Tuesday (3.4 rating/11 share in adults 18-49, 12.2 million viewers overall), in line with its 9 p.m. performance of last week. It was followed by the two-hour season premiere of unscripted dating series ”Love in the Wild” (1.6/4 in 18-49, 5.0 million viewers overall), which was down 27% from its hourlong opener of last summer (2.2/6 in 18-49) but was the broadcast leader among young adults in its second hour.

At Fox, the Tuesday premiere of ”Hell’s Kitchen” (2.1/7 in 18-49, 4.8 million viewers overall) ran second among the broadcasters in the 8 o’clock hour, down 16% from last summer’s Tuesday debut and off about 12% from its Monday premiere 24 hours earlier. At 9, ”Masterchef” (2.1/6 in 18-49, 4.8 million viewers overall) basically held its ”Kitchen” lead-in audience and led the broadcast networks in demos; compared to last summer’s premiere, the show was up 11%.

ABC aired encore episodes of ”Last Man Standing” at 8 (0.8/3 in 18-49, 3.3 million viewers overall) and 8:30 (0.8/3 in 18-49, 3.1 million viewers overall), followed by the special ”20/20: Concert for the Queen , A Diamond Jubilee Celebration with Katie Couric” (1.3/4 in 18-49, 6.8 million viewers overall), which produced about the same numbers as last week’s special concert for the Queen.

CBS aired repeats of ”NCIS” (1.2/4 in 18-49, 8.5 million viewers overall), ”NCIS: Los Angeles” (1.3/4 in 18-49, 7.4 million viewers overall) and ”48 Hours Mystery” (1.1/3 in 18-49, 5.7 million viewers overall).

At CW, ”The Catalina” (0.3/1 in 18-49, 0.8 million viewers overall) held onto its premiere-night demo audience of last week, and was followed by a repeat of the series premiere of ”The L.A. Complex” (0.2/1 in 18-49, 0.7 million viewers overall).

Preliminary 18-49 averages for the night: NBC, 2.2/6; Fox, 2.1/6; Univision, 1.3/4; ABC and CBS, 1.2/3; CW, 0.3/1.

In total viewers: NBC, 7.4 million; CBS, 7.2 million; ABC, 5.6 million; Fox, 4.8 million; Univision, 3.3 million; CW, 0.7 million.