Yes. NBA LEAGUE PASS will offer a limited number of Free Trials periods during the 2014-15 NBA season. The first Free Trial period will begin the first day of the NBA regular season - Tuesday October 28th - and will last for one week, ending on Tuesday November 4th. During all Free Trial periods you will see a specific Free Trial preview option that will allow you to sign up using your NBA.com account. Visit the NBA LEAGUE PASS site to sign up: www.nba.com/leaguepass/broadband
There are additional free previews during the season.