Complex sentence: Ted and Dougal see feminist musician Niamh Connolly on the television, accusing the church of multiple atrocious but highly improbable acts during the Irish potato famine, before she sings a strongly feminist song with the lyrics signed for TV viewers.
Split into simpler sentences: Ted and Dougal see feminist musician Niamh Connolly on the television. Niamh accuses the church of having done several outlandish things during the Irish potato famine, before she sings a strongly feminist song with the lyrics signed for TV viewers.