BOSTON (CBS) -- The Boston Celtics are back in the postseason, and we finally know when they'll play.

The Celtics finished 40-42 on the season, a 15-win improvement and good for the seventh seed in the Eastern Conference, setting them up for a first-round meeting with LeBron James and the Cleveland Cavaliers.

The NBA released their playoff schedule on Wednesday night, shortly after the regular season came to a close:

Game 1 - Sun. April 19, Boston at Cleveland, 3:00 PM, ABC
Game 2 - Tue. April 21, Boston at Cleveland, 7:00 PM, TNT
Game 3 - Thu. April 23, Cleveland at Boston, 7:00 PM, TNT
Game 4 - Sun. April 26, Cleveland at Boston, 1:00 PM, ABC

(If necessary)

Game 5 * - Tue. April 28, Boston at Cleveland, TBD
Game 6 * - Thu. April 30, Cleveland at Boston, TBD
Game 7 * - Sat. May 2, Boston at Cleveland , TNT

Boston went 2-2 against the Cavaliers in the regular season.

The Celtics are back in the playoffs after a one-year absence, and for the first time under head coach Brad Stevens.

Tune in to the Celtics during the playoffs on 98.5 The Sports Hub -- the flagship station of the Boston Celtics! Pregame coverage begins 30 minutes prior to every game!