Ready your DVRs – NBC has announced season finale dates for all their series. “The Office,” “Community,” “Parks and Recreation” and “30 Rock” will all wrap with hour-long episodes. “30 Rock” will cap its fifth season with a milestone on April 21 – its 100th episode.  According to the network, the special ep will revolve around “a new corporate boss, a star in hiding, and a mind-altering gas leak,” which may result in the demise of TGS. Hmm…just vague enough to sound exciting!

Check out the full list of finale dates below:

MONDAY, APRIL 4
“Harry’s Law” (10-11 p.m.)

FRIDAY, APRIL 8
“Who Do You Think You Are?” (8-9 p.m.)

TUESDAY, APRIL 19
“Parenthood” (10-11 p.m.)

SUNDAY, MAY 1
“America’s Next Great Restaurant” (8-9 p.m.)

THURSDAY, MAY 5
“Perfect Couples” (8:30-9 p.m.)
“30 Rock” (10-10:30 p.m.)

THURSDAY, MAY 12
“Community” (hour-long episode from 8-9 p.m.)
“Outsourced” (10:30-11 p.m.)

MONDAY, MAY 16
“Chuck” (8-9 p.m.)

WEDNESDAY, MAY 18
“Law & Order: Special Victims Unit” (10-11 p.m.)

THURSDAY, MAY 19
“The Office” (one-hour finale from 9-10 p.m.)
“Parks and Recreation” (hour-long finale from 10-11 p.m.)

MAY 21
“Saturday Night Live” (11:30 p.m.-1 a.m.)

SUNDAY, MAY 22
“The Celebrity Apprentice” (9-11 p.m.)

MONDAY, MAY 23
“The Event” (9-10 p.m.)

TUESDAY, MAY 24
“The Biggest Loser” (9-11 p.m.)