Observation: In science fiction, alien civilizations come in exactly two flavors:
1) Well ahead of our current level of technology
2) Stone age
Aliens are never wowed about their first color TV, their new computer with 64 whopping K of RAM, their exciting new plorg*-less carriage, or the telegraph.
I know there are exceptions to this rule, but they’re few and far between. That Star Trek: TNG episode where Riker is on some kind of 50s-ish planet is one of the exceptions. What others are there?
* — A four-legged creature similar to a horse.