Who can forget Rosalind (Diana Muldaur) taking over the firm and then loosing her power, just to show up again to take Leland to bed (this scene was ranked as the 38th greatest moment in television in an issue of EGG Magazine).
Sadly enough, this wonderful show jumped the shark in the end of the 5th season when the greatest character of them all (Rosalind Shays) fell down the elevator shaft. Muldaur said in an interwiev that Rosalind "was just to strong for a lot of men". A year later, another strong female character (C.J. Lamb) was dropped. Rumors said that people found her "to sexy".
The last 3 years of the show wasn't great, but are still ok because of the 3 veterans: Richard Dysart, Alan Rachins and Corbin Bernsen.