Watch Detroit Pistons: 1988-1989 NBA Champions - Motor City Madness (1989) : Full Movie Online Free The 1989 NBA Finals was the championship round of the 1988–89 National Basketball Association (NBA) season, and the conclusion of the 1989 NBA Playoffs. The series was a rematch of the previous year's championship round between the Eastern Conference playoff champion Detroit Pistons and the Western Conference playoff champion Los Angeles Lakers.