He owned the National Basketball Association's (NBA) Utah Jazz and the Salt Lake Bees, a minor league baseball team.

The Fanzz chain of sports apparel stores was also owned by LHM Group until its sale to Ames Watson Capital in 2018.

[3] Miller was employed in construction by his uncle, Reid Horne, on-and-off until 1964, when he and all the workers were laid off due to lack of business.

In part due to the gas station's failure to honor its agreement with respect to working hours, Miller moved on to Peck and Shaw GMC-Toyota, a car dealer.

[3] Miller moved on to work for Main Motors, a dealer of snowmobiles, motorcycles, trucks, and trailers as manager of the parts department.

Even after turning the department around and coming across a financial statement proving that it was profitable, his employer refused to honor their agreement.

Miller reconciled with Main Motors after taking, but not starting, a position at Burt Chevrolet-Toyota in Englewood, Colorado.

[3] After more broken promises, Miller left Main Motors for good in 1970 and went to work with Burt as their Toyota parts manager.

From 1963 to 1970, Miller raced cars, and from 1962 to 1985 he was a fast-pitch softball player, pitching in the Salt Lake City and Denver metro leagues.

The family move from Utah to Colorado in 1970 was driven by his desire to play fast-pitch softball for Hagestad Volkswagen in Denver.

[3] Miller provided initial funding for a team of experts at Brigham Young University (BYU) that examined documents from the early history of the LDS Church.

[5] Miller worked with his uncle, Reid Horne, to acquire Toyota of Murray in the Salt Lake City suburbs from Hugh Gardner and his partner for $3.5 million.

[3] Four months after acquiring his first location, Miller got a phone call from Erwin Ashenfelter about buying a distressed dealership in Spokane, Washington.

[6] After a failed attempt to start a television outlet on the last remaining VHF frequency in the Utah market, Miller purchased Salt Lake City independent station KXIV in February 1993.

In October 2000, Miller demanded the right to breach his contract with the network if it increased its "urban/ethnic programming" to more than two hours per week, due to lack of minorities within the Salt Lake Metropolitan.

[7] In July 2000, Miller was sued by Casa Bonita, a Lakewood, Colorado restaurant, for violation of intellectual property rights and unfair competition.

[9] John Amaechi, a retired center who finished his career with the Utah Jazz in 2003, publicly announced his homosexuality on February 7, 2007.

Miller issued a statement the following day, conceding that he had made a bad decision in pulling Brokeback Mountain.

He described it as a "knee-jerk reaction" and said that he would probably allow the film to be shown if faced with the same decision again; however he said he was still unsure how he would react to an openly gay player on his basketball team.

Miller had difficulty obtaining financing since the $8 million was two times his net worth and the team had never made a profit in its entire 11-year lifetime.

He was able to get a commitment from a consortium of six local banks with just seven minutes before the expiration of the deadline imposed by Jazz owner, Sam Battistone, on April 11, 1985.

Battistone had difficulty getting the NBA to approve the purchase, primarily due to Miller's relatively low net worth.

[3] Fourteen months later, Miller was about to sign a deal to sell his interest in the Jazz for $14 million but backed away at the last moment because it would result in the team moving to Minnesota.

[3] In October 2020, the Miller family agreed to sell the Jazz and Vivint Arena to Ryan Smith, founder of Qualtrics, for $1.66 billion.

[14] Miller contributed to a variety of causes and organizations including many projects related to the LDS Church, academic scholarships, American history, preserving historic architecture, planetariums, hospitals, music, art, horticulture, and numerous other forms of public service and philanthropy.

[3] Miller started a "Teach the Teacher" project to fund rigorous summer tours devoted to American history in 2007.

The program selects three groups of 30 teachers each and sends them to one focused on Utah with an emphasis on Native American history, another on westward migration, and yet another on colonial America.

[3] In June 2008, Miller suffered a severe heart attack, and was hospitalized for 59 days with complications that included kidney failure and gastrointestinal bleeding, which required a blood transfusion.

On January 23, 2009, Miller underwent surgery to amputate both legs six inches below the knee, a result of complications from type-2 diabetes.

Larry's legacy extends beyond the NBA as he touched many lives in the Salt Lake City region through his business ventures and charitable endeavors.