Complex sentence: During the NBC shopping era, the lot was won twice; the first was during the first four months of the series and the second, by contestant Barbara Phillips in August 1983, came after the institution of the cash jackpot as a prize.
Split into simpler sentences: During the NBC shopping era, the lot was won twice. The first was during the first four months of the series and the second, by contestant Barbara Phillips in August 1983, came after the institution of the cash jackpot as a prize.