Hallmark Entertainment is an American production company that was founded in 1979 as Robert Halmi Incorporated. They merged with Hal Roach Studios in 1988 to form Qintex Entertainment, and two years later were renamed to RHI Entertainment. In 1994, the company was purchased by Hallmark Cards and renamed to Hallmark Entertainment. In 2006, the company was reacquired by its original owners and renamed to RHI Entertainment again.
In 2012, the company changed its name to Sonar Entertainment.