Two NBC series turned in season lows in the ratings Tuesday night, based on Nielsen overnights, as the broadcast networks in general endured a night of less-than-stellar numbers.

TVbytheNumbers.com reports that NBC’s “Go On,” which sank to a 1.3 average rating in the key 18-49 demo, and “The New Normal,” which came in with a 1.2, both hit season lows. “Go On” fell 24% from last week’s number while “Normal” dipped 14%.

Elsewhere on NBC, two episodes of “Betty White’s Off Their Rockers” delivered a 1.6 and a 1.8 in viewers 18-49; and the season finale of “Parenthood” fell off 11% from last week to a 1.7.

ABC saw its two-hour series premiere of “The Taste” deliver a 2.2 average in 18-49, which on a low-rated Tuesday night — and with CBS airing all repeats — was good enough to be the highest-rated show of the night. “The Taste” was followed by the series finale of “Private Practice,” which rose 25% from last week to a 1.5.

Fox was generally up from a week ago, including “Raising Hope,” up 6% to a 1.7 average in the 18-49 demo; “Ben and Kate,” up 9% to a 1.2; and “New Girl,” up 11% to a 2.1. “The Mindy Project” was even with a 1.5.

For prime time overall, ABC led the way with an average rating of 1.9 in viewers 18-49, followed by Univision (1.7 average), Fox (1.6), NBC (1.6) and CBS (1.5). CBS scored a big win in total viewers with 10.5 million, followed by ABC with 5.8 million, NBC with 4.7 million, Univision with 4.0 million and Fox with 3.4 million.