Complex sentence: During the 1970s, Mother Angelica had been a lecturer and produced educational audio and video tapes, and she had been a guest on local station WBMG (formerly WIAT), and on shows on the Christian Broadcasting Network and the Trinity Broadcasting Network.
Split into simpler sentences: During the 1970s, Mother Angelica had been a lecturer and produced educational audio and video tapes. She had been a guest on local station WBMG (formerly WIAT), and on shows on the Christian Broadcasting Network and the Trinity Broadcasting Network.