I, Claudius - Season 1 Episode 2

It is now 9 BC. Livia has poisoned Agrippa and Tiberius is being forced to divorce his wife Vipsania to marry Julia. Neither Tiberius nor Julia are happy with this arrangement and Julia also confesses to Antonia, daughter of Mark Antony and wife of Tiberius' popular brother Drusus Germanicus, that she believes Livia killed Marcellus. Drusus is all for a return to the Republic and Tiberius envies him because he is not stuck in Rome but spear-heading military campaigns in Northern Europe. However, Drusus dies after a fall from his horse. Livia is anxious that Augustus be deified but there is general caution lest it angers the Gods. After Julia has complained of her husband's ill treatment of her, Tiberius is banished from Rome and Augustus sees the future as lying in his young grandsons Lucius and Gaius. Antonia has also borne a child by Drusus: Claudius.