10:50Primary HistoryWalk Through TimeA Walk through Time - HealthBBC Two Duration: 20 minutes Tue 22nd Apr 2008, 10:50 on BBC Two Northern Ireland (Analogue)Tony Robinson sifts through two thousand years of history to a time when there were no doctors, hospitals or chemists.ContributorsPresenter:Tony RobinsonGenresLearningPrimaryBrandPrimary HistorySeriesPrimary History: Walk Through Time Source: BBC Online