Two of the only original offerings on broadcast TV dipped to series low ratings last night.

Over on NBC, “World of Dance” tripped over its feet, falling almost 30% from last week to a 0.5 rating amogn adults 18-49 and drawing 3.3 million total viewers. That represents a series low rating for the dance competition show, the previous low being a 0.7. Earlier on, a recap of the best of the audition stage of this season of “America’s Got Talent” scored a 0.7 rating and drew 5.1 million viewers, topping the night.

The other show which fell to a series low so far was “Stargirl” on the CW. The DC show scored a 0.1 rating for the first time, having scored almost exclusively a 0.2 throughout its first season run so far. “Stargirl” drew 786,000 viewers on Tuesday night, its smallest audience so far. The show premiered to a 0.3 and 1.2 million viewers back in May. Later on, the final of CW’s “Happy Hour” scored a 0.1 rating and only 287,000 viewers.

CBS aired only replays, with “NCIS” and “FBI” both scoring a 0.4 rating. The former drew 5.3 million viewers, the latter 4.1 million. A rerun of “FBI”‘s “Most Wanted” spinoff rounded out the night with a 0.3 and 3.3 million viewers.

ABC aired a new episode “What Would You Do?” with John Quiñones to a 0.3 rating and 2.3 million viewers, a slight tick down in both metrics from last week. Two “United We Fall” replays preceded it with a 0.3 rating and around 1.9 million viewers each. Prior to that, back-to-back “Modern Family” reruns averaged a 0.4 rating and around 2 million viewers.

On Fox, a “Hell’s Kitchen” replay cooked up a 0.3 rating and 1.3 million viewers, followed by a “Prodigal Son” rerun with a 0.2 and 763,000 pairs of eyeballs.