Complex sentence: Great American sold Worldvision to Aaron Spelling Productions in 1988 and ownership of its programming assets were included with the syndication distributor except for the Hanna-Barbera library, which remained owned by Great American for the time being.
Split into simpler sentences: Great American sold Worldvision to Aaron Spelling Productions in 1988. Ownership of its programming assets were included with the syndication distributor except for the Hanna-Barbera library, which remained owned by Great American for the time being.