To celebrate the 30th anniversary of the franchise, Sony has remastered Ghostbusters in 4k and will air the movie in theaters (U.S. and Canada) for one week starting August 29 (Labor Day weekend). You can also purchase the 4k edition of Ghostbusters and Ghostbusters II in a box set that is currently available for pre-order on Amazon.com.
[Ghostbusters / Ghostbusters II (4K-Mastered) [Blu-ray] – Pre-Order]