1979-Salvage 1

Once upon a time a junkman had a dream. So he put together a team: an ex-astronaut, a fuel expert; they built a rocket ship and they went to the moon! Who knows what they'll do next?
Groan. The fairly preposterous pilot movie ("Salvage") had Andy Griffith as the leader of this team. I remember a couple of plot points from it, like the rocket ship was built out of junk Nasa threw away, and to calculate guidance and trajectory, they hacked into Nasa's computer system over a phone line!
Subsequent episodes featured the team going on exotic missions to retrieve oil from dried-out oil wells (as shown in this teaser), diamonds from an active volcano, icebergs from the polar ice cap, going back into space to retrieve satellites, and so on.
Eighteen episodes were produced after the pilot but the last four never aired.