Following his discharge from the Army, he held the positions of accountant and advertising copywriter.
While playing this part, he and a colleague started recording lengthy phone conversations in which they discussed strange topics; he then sent the recordings to radio stations for auditions.
Newhart was signed to Warner Bros. Records in 1959 after being introduced to their head of talent after producing solo cassettes.
His stand-up comedy routines, in which he played the role of a lone “straight man” representing one side of a discussion, were popular with audiences.
He made history in 1960 with his comic album The Button-Down Mind of Bob Newhart, which debuted at number two on the UK Albums Chart and became the first comedy album to reach number one on the Billboard charts.
Album of the Year and Best New Artist were the two Grammy Awards that the star was bestowed with.