Mike Breen has sneaked up on us — if stealth is possible when you’ve called Knicks games on radio and TV for a quarter-century and been the lead voice of the N.B.A. on ESPN and ABC for a decade.

Breen’s longevity is not a surprise. He is an easy, comfortable presence whose play-by-play is smooth and accurate, who pays attention to small details and engages his analysts — Mark Jackson and Jeff Van Gundy at ESPN and ABC, and Walt Frazier at MSG Network — as if they are carrying on a game-long discussion. He has no shtick — unless you count “Bang!” for critical 3-pointers as one.

The N.B.A. finals between the Golden State Warriors and the Cleveland Cavaliers is his record 11th finals, two more than Marv Albert (with NBC) and Dick Stockton (CBS). And he will continue his run with a newly announced contract extension.

“I know this sounds corny and clichéd, but it’s kind of overwhelming to think about it,” he said by telephone Friday between Games 1 and 2 of the finals. “I grew up watching the N.B.A. when Marv was the man — and he’s still the man — and I listened to Stockton call all those Lakers-Celtics matchups. I’ve been blessed to have all these opportunities come my way.”