This image released by NBC shows the cast of "Chicago Fire.” (AP)

About three weeks before NBC releases its official fall schedule at the upfronts, the network has announced early pick-ups for five of its drama series: “Parenthood” and “Grimm,” along with newcomers “Revolution” and “Chicago Fire” and veteran “Law & Order: SVU.” All five shows received 22-episode orders.

Given that the viewers-plagued network has seen disappointments with new dramas such “Do No Harm” and “Deception,” as well as the re-tooled “Smash,” renewals for the two new drama series — which have done much better in the ratings — are not quite surprising. J.J. Abrams’ “Revolution,” about a post-apocolyptic world without power, is the top-rated drama series among all broadcast networks in 18-to-49-year-old category.

“Chicago Fire,” produced by “L&O” king Dick Wolf, has pleased NBC so much that the network is already contemplating a spin-off for next season.

Meanwhile, critically-beloved but low-rated “Parenthood” was less than a sure thing, but has been given a 22-episode fifth season order for the first time since its second season — last year, it only produced 15.

In its second season, “Grimm” has been a solid performer for NBC on Friday nights, though it will get a chance to shine on Tuesdays starting next week, replacing the network’s latest reality flop, ”Ready for Love.”

And Wolf’s remaining “Law & Order” franchise, “SVU,” will march into its 15th season.

No word yet on the fate of NBC’s comedies currently on the bubble, including “Parks and Recreation,” “Community,” “Whitney, “Go On” and “The New Normal.”