This Canadian television sportscaster is known for his "Hockey Night in Canada" role, a commentary show during hockey games.

The answer is Don Cherry because he gained fame and recognition as a Canadian television sportscaster predominantly through his role on 'Hockey Night in Canada.' As a commentator during hockey games, Cherry became a prominent figure in Canadian sports media, known for his distinct personality, flamboyant suits, and outspoken opinions, which often garnered both praise and controversy. His tenure on 'Hockey Night in Canada' solidified his reputation as a significant and influential hockey commentator in Canada.