Who Owns 'The Osbournes'?

There's a new court fight over who owns the rights to the hit MTV reality show "The Osbournes."

The entertainment company Threshold.tv filed a lawsuit Tuesday saying it signed an intellectual property rights agreement with rock singer Ozzy Osbourne's company Monowise in 2000.

The company wants the Los Angeles Superior Court to rule that it owns the series about Osbourne and his family, not MTV. The music network declined to comment on the new lawsuit. [MTV and CBS are both owned by Viacom.]

With a second season of the show in the works, Osbourne's wife, Sharon, has begun chemotherapy for cancer that she recently learned had spread beyond her colon. The show also stars two of their teenage children, daughter Kelly and son Jack.

In another lawsuit, Los Angeles-based producer Gary Binkow sued the Osbournes late last month, claiming that they stole his idea for their MTV series. That lawsuit seeks unspecified damages for breach of contract and fraud.

Representatives for the Osbournes did not immediately return a call seeking comment.