This program has been pre-recorded.

How is that statement different from this one?

This program has been recorded.

What meaning does the “pre-” confer that the simple use of the word “recorded” doesn’t?

Similarly, why does everyone talk about “pre-existing” conditions when “existing” conditions works just fine?

Yes, I know, English isn’t a logical language (is there such a thing?).

Actors talk about taping a TV show, when video tape hasn’t been used for years, it’s all digital now.

Still, I inwardly cringe whenever I hear an unnecessary “pre-”.