NBC’s trio of “Chicago” dramas ticked down in the TV ratings last night, but there’s no need to call the police, the fire brigade or an ambulance quite yet.

Chicago Med,” “Fire” and “P.D.” were still the top three shows on the night, scoring a 1.1, a 1.1 and a 1.0 rating respectively among adults 18-49. Each was down by around a 0.1 ratings point. However, all three retained almost exactly the same total viewership week-to-week.

ABC and CBS tied for second on the night behind NBC, with the Disney-owned network seeing small boosts for “The Goldbergs” and “Schooled.” “Goldbergs” came in at a 0.8 rating and 4 million viewers, up from 3.5 million last episode. Meanwhile “Schooled” hopped from a 0.6 rating to a 0.7 and drew just under 3 million viewers. “Modern Family” ticked down again a fraction to a 0.8 rating and 3.5 million viewers, which is just over half the rating and viewership it scored when it had “Jeopardy! The Greatest of All Time” as its lead-in a couple weeks back. Both “Single Parents” and “Stumptown” were even at a 0.6 and a 0.4.

Over on CBS, “Criminal Minds” came in even at a 0.7 rating and around 4.5 million total viewers. “Undercover Boss” also didn’t budge much week-to-week, posting a 0.7 rating and 4.4 million viewers. “S.W.A.T.” dipped a little to a 0.5 and 3.4 million viewers, a five-week low in terms of viewership.

“Riverdale” remained at a 0.2 rating on the CW, but gained around 100,000 total viewers from last week to end up with a seven-week high of 820,000. However, “Nancy Drew” once again only scored a 0.1 rating and dropped to 550,000 total viewers, its lowest tally so far in season 1.

Finally, Fox aired two reruns of new drama “9-1-1: Lone Star,” both of which scored a 0.4 rating.