British independent TV producer Zenith Entertainment, the company behind “Inspector Morse” and “Hamish Macbeth,” has gone into receivership.Recent cancellations of its hit shows (the BBC axed kids show “Byker Grove” after 17 years, and ITV1 dropped 8-year-old music show “CD:UK”) appear to have been the last straw. Also dropped was cop drama “55 Degrees North,” shuttered after two seasons on BBC1. However, Zenith subsidiary Blaze Television, which produced “CD:UK” and still is making “CD:USA,” has been sold to U.S. company Shout! Factory, which specializes in re-releasing niche music and TV artists. In addition, subsid Zenith North is unaffected by the bankruptcy proceedings and will remain in business.