Messy but heartfelt

I enjoyed it though it could have probably been about an hour shorter as few of the flashbacks were actually needed.

Good. Difficult to "believe" aspects even for a sci-fi show. But very believable that humans would try to kill the first aliens no questions asked. Rather disappointing ending.

Everything is done in quite a mediocre and at times poor way, but there's something a bit interesting about the ending, which suggests that where our chance really lies is not in a new signal coming from elsewhere but rather from old signals coming back, making it possible to hear them in a new way – that is, reinterpreting them. The inclusion of a giant space spider (episode 1 at 40:45 to 40:55), à la SPACEMAN, with no further reference, is odd and unexplained, hallucinations notwithstanding.