A native of Weyburn, Laing's career began in 1962 calling junior hockey games in Saskatchewan. While calling games for the Estevan Bruins, Boston Bruins President Weston Adams heard Laing's play by play on scouting trips. Adams was very impressed with Laing's impartiality, especially in games between Estevan and their rivals, the Weyburn Red Wings. According to Boston Bruins announcer Fred Cusick, Laing "was a dead ringer, in voice and inflection, for Foster Hewitt, Canada's legendary hockey announcer". He was hired by Adams in 1966 to call Bruins games on radio. Laing was 23 years old at the time of his hiring. During his tenure in Boston, he was praised by Boston Globe sportswriter Harold Kaese for being "objective and accurate".
On July 24, 1972, his father, Thomas Laing purchased shares in Soo Line Broadcasting Ltd., owners of CFSL in Weyburn and its satellite station CJSL in Estevan, from Beaver Investments Ltd., A. O. Graham, and J.W.W. Graham. Jim Laing gained controlling interest in the station two years later. In addition to owning the station, Laing was also the station manager. He sold Soo Line Broadcasting to Golden West Broadcasting in 1995.
- "Boston hires broadcaster". The Leader-Post. October 12, 1966. Retrieved 20 April 2012.
- Cusick, Fred (2006). Fred Cusick: Voice of the Bruins. Champaign, IL: Sports Publishing L.L.C. ISBN 9781582619811. Retrieved June 17, 2015.
- "In Other Sport". Edmonton Journal. October 12, 1966.
- Kaese, Harold (September 15, 1967). "Flag Showdown Looms for Hub". The Boston Globe.
- Craig, Jack (January 14, 1973). "Rozelle hoping for bad weather". The Boston Globe.
- Dulmage, Bill. "CFSL-AM (AM1190), Weyburn, Golden West Broadcasting Ltd.". Canadian Communications Foundation. Retrieved June 17, 2015.
- Dulmage, Bill. "CJSL-AM (CJ 1150), Estevan, Golden West Broadcasting Ltd.". Canadian Communications Foundation. Retrieved June 17, 2015.