Complex sentence: The television adaptation by Jack Pulman retained Postumus being framed for the assault on Livilla, and the visit 4 years later to Planasia by Augustus, but removed his fictional survival, he is killed by Sejanus on Planasia after Augustus's death.
Split into simpler sentences: The television adaptation by Jack Pulman retained Postumus being framed for the assault on Livilla, and the visit 4 years later to Planasia by Augustus, but removed his fictional survival. He is killed by Sejanus on Planasia after Augustus's death.