Little Girl Lost scared at wee wee out of me when I first watched it as a kid.
Though we watched the TZ routinely in the early 1960s, I can’t remember if I actually saw that episode as a kid. But I’ve seen it many times as an adult, and I love the ‘space-agey’ and ‘new physics’ aspects of it - and all of the ‘mid-century-modern’ production values. (And I do love the idea that ‘Bill, as Physicist’ could solve this conundrum - it seemed to speak succinctly to the American, scientific ‘Zeitgeist’ of its time ;-)
The Twilight Zone was one of the greatest television series ever produced - perhaps THE greatest.
RIP, R. S.
-JT