The best “hard” science fiction series ever made IMO. After years of peace, the robot Cylons return with a vengeance to wipe out humanity. This time there are twelve models who look like humans. The remnants of the human race take to the stars, protected by the last remaining battlestar – Galactica. Gritty, political, tough, thought-provoking. Note that this is the SyFy remake, not the cheesy ’70s original.