Just heard someone on a YouTube video tell viewers to "stay tuned" for something coming up later, and I'm struck by how some phrases outlive their initial context. Literally, it makes no sense to say "stay tuned" on YouTube, but everyone still knows what it means and thinks nothing of it, even people who have probably never actually watched a TV channel via terrestrial transmission.
@scalzi I think if I were a kid and asked to guess, I'd probably say it's slang for "stay attuned" rather than anything to do with radio frequency. Interesting.
@ericflo @scalzi there should be a program for asking kids what they think these phrases mean. (Someone's surely already done it)