I remember watching the Berlin Wall coming down on the news. I don’t remember the Challenger explosion (edit: though I was alive for it, to be clear). I was out on my own during 9/11, worried as hell about being drafted. Whether or not I am gen-x depends upon which of the dates for its end you choose.
My parents were super strict. I was at a buddy’s house when Terminator 2 first came to VHS and we watched it. I was probably around 11. Having not really seen anything like that, it definitely impacted me for a while. Then again, I was already having nightmares most nights by then anyway.