I'm betting our tv shows and movies are better than the aliens....
If the aliens are more peaceful, we may have some more advanced weaponry than they do, but that's a big IF, and also assuming they don't need
weapons to deal with other threats throughout the Universe.
For all we know, we're just one invention away from interstellar travel (namely, a drive capable of FTL travel)...
We haven't even figured out how some monolithic history sites can be build. Yet ancient man was capable of building walls on almost impossible to
reach places with rocks weighing more then a couple of tons with the size of a small house.... Without even inventing the wheel.