From The Earth To The Earth: The Missions Which Never Left The Ground, Part One - 2TV-1, 1968

The This Space Available blog post From The Earth To The Earth: The Missions Which Never Left The Ground, Part One - 2TV-1, 1968 is now located at
https://space.nss.org/from-the-earth-to-the-earth-the-missions-which-never-left-the-ground-part-one-2tv-1-1968/