Hey I remember watching that show! Me thinks it was the last in a line music variety shows with Captain & Tenille in late 70's & Tony Orlando & Dawn in mid '70's. I remember watching Pink Lady just because it was so odd. By that I mean the whole concept of pairing Japanese (who my dad always called them inscrutable) women with an American male singer made it the only show like it on TV. As I grew up to love anime, the music that goes with it and J music in general, now you've got me wondering if Pink Lady was my influence.
I will definetly look for them on YouTube & otherwise refresh my memory of their music. Thanks for the post!
Edit: Do you have a link to news about the Pink Lady SACD or where it will be distributed. My only guess where to check would be Yes Asia or CD Japan.