According to the NRO, here is some background on the agency:
Develop. Acquire. Launch. Operate.
When the United States needs eyes and ears in critical places where no human can reach – be it over the most rugged terrain or through the most hostile territory – it turns to the National Reconnaissance Office (NRO). The NRO is the U.S. Government agency in charge of designing, building, launching, and maintaining America’s intelligence satellites. Whether creating the latest innovations in satellite technology, contracting with the most cost-efficient industrial supplier, conducting rigorous launch schedules, or providing the highest-quality products to our customers, we never lose focus on who we are working to protect: our Nation and its citizens.
From our inception in 1961 to our declassification to the public in 1992, we have worked tirelessly to provide the best reconnaissance support possible to the Intelligence Community (IC) and Department of Defense (DoD). We are unwavering in our dedication to fulfilling our vision: Supra Et Ultra: Above and Beyond.
The below, are indexes to the videos that the NRO holds, in reverse chronological order on when they were released.
Index of videos at the NRO, as of July of 2021 [50 Pages, 7.5MB]
Index of videos at the NRO, as of September of 2016 [26 Pages, 7.5MB]
Index of videos at the NRO, as of August of 2014 [78 Pages, 5.2MB]
Index of videos at the NRO, as of August of 2009 [61 Pages, 12.35MB]