<P> The Showtime Lakers struck the first blow, winning the 1980 NBA Finals against the Philadelphia 76ers . The following year, behind the "Big Three" of future Hall of Famers Larry Bird, Kevin McHale, and Robert Parish, the Celtics won the 1981 NBA Finals against the Houston Rockets . </P> <P> The Celtics lost the 1982 Eastern Conference Finals to the 76ers, and along with it the possibility of a rematch with the Lakers . However, the final game of that series is memorable to the rivalry because Boston fans chanted for the 76ers, who were just about to eliminate their Celtics, to "Beat L.A.!" Despite the encouragement, the 76ers lost the 1982 NBA Finals to the Lakers, who were led by new head coach Pat Riley . However, the 76ers defeated the Lakers the following year in the 1983 NBA Finals . The 1982--1983 season would also be the rookie year of Laker James Worthy, another Hall of Famer in the storied rivalry . </P> <P> The Celtics would get a new head coach in K.C. Jones, who was also a former Celtics player, and two teams finally had their long - awaited rematch in the 1984 NBA Finals, a grueling seven game series that had many memorable moments, including a 137--104 blowout in Game 3 that led Larry Bird to call his Celtic teammates "sissies", the Kevin McHale takedown of Laker forward Kurt Rambis which led to increased physical aggression by both teams, the sweltering heat of the infamously un-airconditioned Boston Garden in Game 5, and Cedric Maxwell's 24 - point performance in Game 7 . The Celtics went on to win in seven games, increasing their record of Finals' series victories against the Lakers to 8--0 . </P> <P> The following year, the Lakers finally had their revenge, winning the 1985 NBA Finals by taking Game 6 in Boston Garden, becoming the only visiting team to win an NBA championship in that arena . Lakers owner Jerry Buss famously remarked that "this has removed the most odious sentence in the English language . It can never again be said that' the Lakers have never beaten the Celtics"'. </P>

Who won the first nba finals series between boston and los angeles in the 1980s and what year was it
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