What happened to space sci fi TV shows?

Not just cultural myths, but what ifs. If we keep going down the road we are on, is this the future we are going to be stuck with? What would happen if we made AI’s so intelligent we couldn’t tell them from humans? What would happen if they became self aware? If we could have peace on earth (thanks to a Vulcan intervention!) what could we use that excess energy for? Are we doomed to find fights in the universe instead, or can we just explore? (Star Trek sends mixed messages on that score!)