I, Claudius: The Complete Series DVD

Augustus, the first Emperor of Rome, attempts to find an heir, and his wife, Livia, plotting to elevate her own son Tiberius to this position. An expert poisoner, Livia uses the covert assassination and betrayal of all rivals to achieve her aims, beginning with the death in 22 BC of Marcellus. The plotting, double-crossing, and murder continue for many decades, through the reign of Tiberius, the political conspiracy of his Praetorian Prefect Sejanus, and the depraved rule of the lunatic emperor Caligula, culminating in the accidental rise to power of his uncle Claudius. Claudius' enlightened reign is marred by the betrayals of his adulterous wife Messalina and his boyhood friend Herod Agrippa. Eventually, Claudius comes to accept the inevitability of his own assassination and consents to marrying his scheming niece, Agrippina the Younger, clearing the way for the ascension of his mad stepson, Nero, whose disastrous reign Claudius vainly hopes will bring about the restoration of the Roman Republic.