Carl DeSuze enjoyed an extensive broadcasting career that spanned six decades. He initiated his journey in broadcasting in 1937 at WGAN in Portland, Maine. Just four years later, he secured a position that would last an impressive 45 years: hosting the morning show on WBZ in Boston. From 1941 until 1980, he dominated the morning ratings, a feat likely to be unmatched nationally. Throughout his tenure, the station's frequency transitioned from 990 to 1030, and the format evolved from full-service MOR (middle-of-the-road) to Top 40 (W-Beatle-Z, the Boss Sound of Boss-Town) and, ultimately, to Adult Contemporary. A grandmother once referred to him as “that fresh young kid who’s the announcer on the Marjorie Mills Show,” a nod to his early days in the 1940s. Marjorie Mills was later inducted into the Massachusetts Broadcasters Hall of Fame in 2009. In addition to his radio work, Carl hosted a children's show on WBZ-TV called “Surprize Package” during the early days of Boston television.

In the 1940s and 1950s, he gained notoriety for his unique approach to introducing music on air. Breaking a record traditionally refers to being the first to play a song that later becomes popular; however, in Carl's case, it meant physically breaking a disc when he deemed a song subpar. Listeners would hear him declare, “My dear, we won’t be hearing that one again,” followed by the sound of cracking vinyl. He affectionately branded his show as “The Carl DeSuze Swingin’ Sashay” and would punctuate his top-of-the-hour ID with the phrase, “Aaaare you theeeere??”

During the 1960s and 70s, a billboard on the Central Artery near Boston Garden proclaimed, “As Carl DeSuze Riseth, so Doth Bothton,” a testament to his influence in the area.

Carl was known for his distinctive style, frequently arriving at WBZ dressed in an ascot and cape. More than just a morning DJ, he led a rich and varied life, filled with fascinating anecdotes. He shared memories of significant events, such as the Cocoanut Grove fire, and recounted encounters with celebrities and newsmakers, as well as stories from his travels. Upon returning from a trip to Australia, he would amusingly announce the station’s call letters as “W-B-Zed.” With his eloquent speech, dry wit, and passion for the arts, he was often sought after as a guest lecturer. He hosted travelogue presentations for school PTA meetings, including “Southeast Asia…the Tiger We Ride” prior to the U.S. involvement in Vietnam. Additionally, he was multilingual and contributed articles to notable publications like Atlantic Monthly and Yankee Magazine.

After nearly 40 years of hosting the morning show, Carl handed the reins to longtime midday host Dave Maynard in 1980. He then transitioned to a shorter midday shift, where he featured a daily segment called “Carl’s Calendar” until his retirement in 1985.

Carl DeSuze was recognized as a talented announcer and a legendary figure in broadcasting. He passed away in 1998 at the age of 83.