The NBA Finals remain on track to be the highest-rated Finals since 2004 after posting huge numbers for Tuesday night's Game 4.

Game 4 between the Miami Heat and Oklahoma City Thunder registered a 12.4 overnight TV ratings, which is up 12 percent from last year's Game 4 of Dallas-Miami.

The matchup of LeBron James's Miami Heat versus Kevin Durant's Oklahoma City Thunder has generated a lot of interest around the world, but especially in the teams' home markets. Tuesday night's game drew 49.1 percent of local households, the most-ever for an NBA game, according to Nielsen ratings.

The terrific ratings are certainly appreciated by ABC, the Finals rights holder since 2003, though the Heat winning Game 4 didn't help the network's cause. Miami's 104-98 victory gives it a 3-1 series lead and the opportunity to close out the NBA Finals on Thursday in Game 5.

Typically after the initial ratings bonanza in Games 1 and 2, ratings start climbing the longer a series goes, which is why ABC executives are likely hoping the series goes to seven games. A Game 7 game between the Thunder and Heat could set NBA television ratings records, but it currently looks unlikely that the series will last that long.