He had a training camp stint with the Baltimore Colts of the National Football League (NFL) after college, but it was ended by a severe ankle injury.

[1] In March 1972, he was recognized by governor Julian Carroll, who commissioned him a Kentucky Colonel, which is the highest title of honor in the state.

[1] In his two years at the station, Mueller did numerous CBS network reports covering golf, auto racing, and other events including the Joe Frazier vs. George Foreman boxing match.

[4] Mueller was commentator for some of the most memorable seasons in Browns history, including the 1980 "Kardiac Kids" and the Bernie Kosar era.

"[4] Mueller was a big fan of auto racing, and went as far as to become a Sports Car Club of America (SCCA) driver.

[1] Mueller co-founded the Sports Media Associates of Cleveland and Ohio (SMACO) and was its first president for six years, before being named executive director for life in 1982.

For 23 years, he hosted the Jim Mueller SMACO Charity Golf Classic, which raised hundreds of thousands of dollars for various organizations.