Complex sentence: In March 2015 they released a complete first season set exclusively to Wal-Mart that features an alternate cover from the Time Life complete first season set, the complete second season set was also released exclusively to Wal-Mart the same day.
Split into simpler sentences: In March 2015 they released a complete first season set exclusively to Wal-Mart that features an alternate cover from the Time Life complete first season set. The complete second season set was also released exclusively to Wal-Mart on the same day.