I watched this show as a child in Canada, and I remember it fondly. It was very ambitious in its reach - the anti-alien organization had at its disposal a moon base, space craft, special land mobiles and a submarine that could also launch a manned aircraft! This involved lots of models and special effects, and was very exciting at the time. I also enjoyed the personal life conflicts of the characters in the series; the show was not just an endless series of explosions and chases, it tried for a more serious, complex approach. It's funny now to look at the odd clothes worn and bizarre hairdos (including purple wigs as part of the uniform of the female personnel on the moon base!) but the show was meant to be taking place 10 years in the future, so it is possible that the unusual costuming was meant to add an exotic, futuristic atmosphere.