

OK, maybe it’s not exactly fair to blame “No Ordinary Family,” but it is kicking off what is turning out to be ABC’s worst night of the week.

The superhero family show starring Michael Chiklis fell to a series low Tuesday, earning just a 3.3 rating/5 share, according to Fast National overnight ratings from The Nielsen Co. That’s a nearly 30 percent fall from the previous week, and 34 percent off its deteriorating average.

It set up a losing night overall for ABC that saw “V” and later “Detroit 1-8-7” achieve or at least come close to series lows as well.

“V” suffered considerably. The show earned a 3.3/5, matching its lead-in, and was the worst outing since grabbing a 3.2/5 on April 27. It was an 18 percent loss from its season premiere audience last week and is averaging a 40 percent smaller audience than ABC averaged in the timeslot a year ago.

That puts both programs on the hot seat headed toward cancellation. “No Ordinary Family” has now lost nearly half its premiere audience and helped ABC finish second-to-last for the night.

“Detroit 1-8-7” is getting absolutely no help from its genre lead-in. It earned a 3.4/6, some 32 percent off its average. The show is still averaging better than ABC did last year in the timeslot, but if it wants to continue, it needs desperately to regain the audience it had at the beginning of the season.

One thing to note is that both “No Ordinary Family” and “V” are up against the two best-rated dramas on television — both of which had their best nights of the season on CBS.

“NCIS” at 8 p.m. earned a 12.9/20, its best audience since Jan. 5, 2010. “NCIS: Los Angeles” followed its lead, earning a 10.7/16, it’s best outing of the season.