Hey! A/V tech here. First thing, kudos for preserving media at 480p - it’s probably better than the original broadcast quality, tbh. One thing you might consider is checking with educational distributors from that era; they often kept catalogs, and you never know, there might be some backstock sitting in …
Every other month there's some 'revolutionary' device promised that never sees the light of day. I miss the good old days when companies released tech that they actually made. The modular concept of the Superphone 3000 reminded me of the old PC days, total control over your tech. Shame it …