NBC announces its midseason lineup (Updated)

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NBC announced the long-awaited premiere date for ‘Parenthood’ today, along with the rest of its midseason lineup.

‘Parenthood,’ starring an A-List ensemble that includes Peter Krause and Craig T. Nelson, will debut on March 1 at 9 p.m. Jerry Seinfeld’s new comedy, ‘The Marriage Ref,’ will premiere on March 14 at 8 p.m.

[Update 11:50: We neglected to note that the ‘Heroes’ season finale will air on Feb. 8 and the Winter Olympics will air on NBC from Feb. 12-28].

Here is the complete schedule:

MONDAYS

8-9 p.m. -- “Chuck” (begins Jan. 11; two back-to-back season-premiere episodes on Jan. 10 from 9-11 p.m.)

9-10 p.m. -- “Parenthood” (premieres March 1)

10-11 p.m. – “The Jay Leno Show”

TUESDAYS

8-10 p.m. – “The Biggest Loser” (its new season premieres on Jan. 5)

10-11 p.m. – “The Jay Leno Show”

WEDNESDAYS

8-9 p.m. – “Mercy”

9-10 p.m. – “Law & Order: Special Victims Unit”

10-11 p.m. – “The Jay Leno Show”

THURSDAYS

8-8:30 p.m. – “Community”

8:30-9 p.m. – “Parks and Recreation”

9-9:30 p.m. – “The Office”

9:30-10 p.m. – “30 Rock”

10-11 p.m. – “The Jay Leno Show”

FRIDAYS

8-9 p.m. -- “Law & Order”

9-10 p.m. -- “Dateline NBC”

10-11 p.m. – “The Jay Leno Show”

SATURDAYS

8-11 p.m. -- encores of dramas

SUNDAYS

7-9 p.m. -- “Dateline NBC” (through March 7, then moves to 7-8 p.m. beginning March 14)

8-9 p.m. – “The Marriage Ref” (debuts March 14)

9-11 p.m. -- “The Celebrity Apprentice” (premieres March 14)

-- Maria Elena Fernandez (follow me on Twitter @writerchica)