Complex sentence: In June 1994, Bergeron left WBZ when he was hired by the new FX cable network to co-host a morning talk show for them, called "Breakfast Time", which was his first network television exposure.
Split into simpler sentences: In June 1994, Bergeron left WBZ when he was hired by the new FX cable network. He had been selected to co-host a morning talk show for them, called "Breakfast Time", which was his first network television exposure.