The Kents were successful in their determination to avoid publicity and to keep Clark's surroundings as normal as possible.
7 seconds sound clip from Superman (1948) - Superman Comes To Earth (Chapter 1).
You can hear this line at 00:13:18.565 in the Blu-ray version of the episode.
Quote context
[...]
- Say, we'd better get back to the house. The baby may be hungry.
- He developed rapidly, and it was soon clear that he was no ordinary infant.
- By using his remarkable x-ray vision and super hearing, he could perform unbelievable feats.
- But Clark himself was anything but average.
- I'll get it son, go on with your reading. Hello? Yes. Oh. Well, thank you for calling.
- That was Judd, says a tornado's heading this way. You must find your father and warn him.
- Down in the south meadow, quickly.
- Clark, that was the most remarkable thing you ever did. I'm... I'm grateful to you, son.
[...]