Listen to this morning's class, "R. Ovadia Yosef & 'Chaning What We Do'," here.
Follow along with the sources here.
For further research:
1) Listen to our past classes, which served as the "backdrop" to this class - "2 Approaches to Pesak Halakhah," Part I and Part II.
2) We discussed the controversy surrounding R. Ovadia Yosef's approach to "leshem yihud." Read a past post about it here.