“Up All Night” pilot with Christina Applegate and Will Arnett (Trae Patton/NBC)

NBC’s debut of “Up All Night” got off to a strong start on Wednesday night, with almost 11 million viewers catching the married-couple-with-an-adorable-baby comedy starring Christina Applegate and Will Arnett as exhuasted new parents.

A great number for NBC at 10 p.m. — when lots of people put down the remote and go to bed — “Up All Night” was still down from its lead-in, the “America’s Got Talent” finale, which copped approximately 14 million people.

“Free Agents” wasn’t quite so lucky. The comedy, about PR agents who accidentally hop into bed together and have to go back to being co-workers the next day, drew about 6.3 million.

However, the two series will meet a new challenge next week — both shows move to their regular Wednight night timeslots at 8 and 8:30, right against Fox’s debut of Simon Cowell’s “The X Factor.”