I remember a couple of episodes of Laverne and Shirley where catfights were referenced, but no fights were actually shown. One episode showed Laverne and Shirley arriving back at their apartment somewhat disheveled. They talked about what they did to the other two girls they fought. In another episode, there were several girls in an apartment, and Laverne got into a verbal argument with another girl. As I remember it, they moved a coffee table out of the way, and faced off to fight, but again, no fight was shown.