Complex sentence: The character of Meredith was inexplicably written out of the series in the middle of the first season, and never mentioned again; characters would speak about their family history as though Meredith had never existed.
Split into simpler sentences: The character of Meredith was inexplicably written out of the series in the middle of the first season and never mentioned again. Characters would speak about their family history as though Meredith had never existed.