NAD uploaded a self-promotional 50th anniversary documentary about their history.

https://youtu.be/P41NtX82M1w

I was never exposed to NAD until my 20's, by which time I had already heard of their quality control issues during the 90's, something they address in an unsatisfactory mea culpa way. And frankly, I will never feel nostalgic for any hifi brand that lacked brushed stainless steel finishes.