NEW YORK (AP) - Chicago's 4-3 triple-overtime win over Boston attracted the most TV viewers for an opening game of the Stanley Cup finals in 16 years. NBC's broadcast averaged 6.358 million viewers, the most to watch a Game 1 of the Stanley Cup finals since Detroit and Philadelphia drew 9,000 more on FOX in 1997. It marked an increase of 119 percent compared to the Stanley Cup finals series opener last year with the Los Angeles Kings and New Jersey Devils. NBC is averaging more than 3 million viewers during the playoffs, an increase of 38 percent compared to last year. NBC and the NBC Sports Network are combining to average 1.191 million viewers for each game, an increase of seven percent versus last year.