Galactica 1980 S01 E04 The Super Scouts (1)

"The great ship Galactica, our home for these many years we've endured the wilderness of space. And now, we near the end of our journey: we have, at last, found Earth."

When the Cylons launch a surprise attack on the fleet, Adama sends Troy and Dillon to take the children to Earth for their own safety.