Dixie Carter was this alluring mature woman who worked at the advertising company. One of the guys - a young pup would just melt whenever she walked by. She rarely said much.
And then one episode she pulled out her southern drawl and gave a sales pitch for some product that she was working on - I about fell out of my chair. She gave this big souther smile and then switched back to the cool, aloof character she had been playing all along. I loved it!