Complex sentence: Tom Kennedy took over hosting "Password Plus" until it went off the air in 1982, though it returned in 1984 as "Super Password" and subsequently "Million Dollar Password" in 2008.
Split into simpler sentences: Tom Kennedy took over hosting "Password Plus" until it went off the air in 1982. However, the show returned in 1984 as "Super Password" and subsequently "Million Dollar Password" in 2008.