In 1979 Robert Halmi senior founded the company Robert Halmi Entertainment. In 1988 it was taken over by Hal Roach studios; two years later the company was renamed RHI Entertainment. In 1994 Halmi sold the company to the Hallmark Group, which renamed the studio Hallmark Entertainment. Halmi bought the studio back in 2006 and gave it the former name RHI Entertainment. The company was renamed Sonar Entertainment in 2012 after Robert Halmi senior withdrew from the company.
RHI Entertainment is a producer and distributor of long-form television content, including made-for-TV movies and miniseries programming. The company boasts a library of more than 1,000 titles In addition to supplying
to broadcast and cable networks, RHI distributes its shows on video and DVD, and digitally through Apple's iTunes store. The company has offices in New York, Los Angeles, London, and Sydney.