Cosentino attended Spring Arbor College in Spring Arbor, Michigan, where he played baseball and called basketball games. After graduation, Cosentino briefly worked as baseball instructor before joining the Toronto Blue Jays as a clubhouse employee. While working for the Blue Jays, Cosentino also hosted the Jr. Jays radio show.
In 2005, Cosentino joined Rogers Sportsnet's Toronto Blue Jays broadcast team as a field reporter. He remained in that position until he was replaced by multiple reporters following the 2010 season. During the 2012 season, he became host of Baseball Central alongside Dirk Hayhurst on Sportsnet 590 The Fan. He was succeeded by the team of Jeff Blair and Kevin Barker.
Cosentino began broadcasting hockey in 1998 as a color commentator on Rogers TV's Ontario Hockey League broadcasts. In 2003, he joined Rogers Sportsnet as a junior hockey and American Hockey League analyst.
- Boysen, Greg (June 27, 2020). "Prospects News & Rumors: Sportsnet's Sam Cosentino Checks In". thehockeywriters.com.
- "Sam Cosentino". Rogers Sportsnet. Retrieved 4 November 2010. CS1 maint: discouraged parameter (link)
- Jeremy Sandler (February 16, 2011). "Mulliniks, Cosentino bumped from Blue Jays broadcasts". National Post. Archived from the original on July 17, 2012. Retrieved 2011-03-02. CS1 maint: discouraged parameter (link)
- "Twitter". Retrieved 2012-06-08. CS1 maint: discouraged parameter (link)