Battlestar Galactica (1980)

A continuation of the original series, Battlestar Galactica 1980 follows Commander Adama and the fleet as they finally locate Earth, only to realize the planet is not prepared for advanced alien or Cylon threats. The series blends science-fiction adventure with present-day settings, focusing on efforts to guide and protect humanity without disrupting historical development. Its episodic structure and shift toward contemporary storylines distinguish it from the darker, space-based tone of its predecessor.

Från IMDB:
When the Battlestar Galactica finally arrives at Earth, they find they must subtly raise its tech level while protecting it from the Cylons.