The 2019 release of the DS9 retrospective documentary, What We Left Behind , provided the first official glimpse of professionally remastered footage from the series.
While the TNG remaster project was completed earlier, 2019 saw continued technical deep-dives into the process of updating the show. Star (2019 - Remaster)
: This Deep Space Nine Remastering Blog detailed the use of neural networks like AI Gigapixel to scale 480p footage to 1080p or 4K. The 2019 release of the DS9 retrospective documentary,
: A post titled " Protecting a Story’s Future with History and Science " explained the decision to move toward "Non-Graded Archival Masters" (NAM) to ensure future remasters are easier to produce without "baking in" old color corrections. : A post titled " Protecting a Story’s
Blogging in 2019 also touched on the industry-wide shift in how archives are preserved.