Complex sentence: The existing Radio Éireann service was transferred to the new authority, which was also to make provision for the new television service ("Telefís Éireann") which opened on December 31,1961, from the Kippure transmitter site near Dublin.
Split into simpler sentences: The existing Radio Éireann service was transferred to the new authority, which was also made provision for the new television service ("Telefís Éireann"). The television service started broadcasting on December 31,1961, from the Kippure transmitter site near Dublin.