Don't know if these would be considered as forgotten. But I was born in 86, and these are two that come to mind: Spoiler
Yeah... My first thought was Don't Tell Mom the Babysitters Dead, but after checking I saw that it was filmed in 1991.
If the criteria was expanded to 1991 would this have been your recommendation? <div id="spoiler" style="display:none"> </div> <button title="Click to show/hide content" type="button" onclick="if(document.getElementById('spoiler') .style.display=='none') {document.getElementById('spoiler') .style.display=''}else{document.getElementById('spoiler') .style.display='none'}">Show/hide</button>