This was the first postseason allowing 16 teams to qualify, a format still in use.
The first round format was also changed from best-of-3 to best-of 5.
It was the first NBA Finals meeting between the Celtics and Lakers since 1969; they met 7 times in the Finals from 1959 to 1969, with Boston coming out on top each year. Going into the 1984 playoffs, the Lakers had already won 2 titles in the 1980s and the Celtics 1, making the revival of the Celtics–Lakers rivalry arguably inevitable and certainly highly anticipated.
Two teams made their playoff debuts and won their first playoff series: the Utah Jazz (who joined the NBA for the 1974–75 season as the New Orleans Jazz) and Dallas Mavericks, a 1980 expansion team. The Jazz did not miss the playoffs again until 2004.
The Detroit Pistons made the playoffs for the first time since 1977, starting a string of nine consecutive appearances that included five straight Conference Finals appearances (1987–1991), three consecutive NBA Finals appearances (1988, 1989, and 1990) and two NBA Championships. They did not miss the playoffs again until 1993.
The New Jersey Nets won a playoff series for the first time in their NBA history, upsetting the defending champion Philadelphia 76ers in 5. This was also the only time the road team won every game in a five-game playoff series. The Nets would not win a playoff series again until 2002.
The Kingdome also hosted its final NBA playoff game, as the Seattle SuperSonics moved back full-time to the Seattle Center Coliseum two years later. However, the Kingdome continued to host Sonics regular season games on occasion until 1994.
The 1984 playoffs also involved two of the hottest games in NBA history. Game 5 of the First Round between the Knicks and Pistons was played at Joe Louis Arena, as the Pontiac Silverdome was unavailable, with temperatures reaching as high as 120°. Game 5 of the NBA Finals between the Celtics and Lakers at Boston Garden reached temperatures as high as 100°, as the Garden lacked air-conditioning, coupled with the sweltering outdoors conditions in Boston.
This is the last postseason of using the 2-2-1-1-1 format of the NBA Finals until 2014; the 1985 NBA Finals was changed to the 2-3-2 format the next season.
Bernard King/Isiah Thomas Duel. King put up 44 points while having the flu and both middle fingers dislocated, while Thomas scored 16 points in the last 93 seconds of regulation to force OT.
This was the seventh playoff meeting between these two teams, with the Lakers winning five of the first six meetings. All previous series took place while the Lakers franchise were in Minneapolis and the Royals/Kings franchise in Rochester.
Pat Cummings hits the game-tying layup with 31 seconds left before Derek Harper made a mistake by dribbling out the clock thinking Dallas was ahead by one, when the score was actually tied.
Gerald Henderson stole a James Worthy pass and made a layup to tie the game with 13 seconds left and eventually force OT; Scott Wedman hits the clutch shot with 14 seconds left in OT.
Kevin McHale clotheslined Kurt Rambis; Larry Bird hits the game-tying free throws with 16 seconds left in regulation to force OT, then hits the clutch jumper over Magic Johnson with 16 seconds left in OT after Magic misses two clutch free throws that would give the Lakers the lead with 34 seconds left in OT; M. L. Carr steals James Worthy's inbound pass and dunks it with 6 seconds left in OT.
