Catspaw, I do remember a PBS guitar instruction show hosted by a woman but I can't recall her name, nor does Laura Webber ring a bell. I think i learned the 'Rhombus strum' on this show. I also recall a PBS show called "Students of Segovia" where the student would play a remarkable piece and Segovia would say 'no, no, no...play it like this. It seemed identical to me. And then there was Pete Seeger's show but i can't recall the name. Maybe Rainbow something or other.