Two married sisters, one lived in house with husband named Greg. The other lived in the guest house in back with husband named Jimmy. Couple in house were successful, white collar man and wife was stay-at-home Mom. Couple in guest house were blue collar.

Yes, Dear - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Yes,_Dear)

Not in the 90's , but I'm pretty certain you are talking about Yes, Dear. It actually started in 2000.