The Golden Years - S4.E11

It's the year 2027, and Cybill and Maryann, now senior citizens, are still sipping martinis and insulting men. When they come across Cybill's diary from 97, Cybill begins to read aloud from the book, and one of the passages hurts Maryann's feelings - creating a rift between the two friends. Cybill and Maryann must travel 30 years into the past to resolve the issue and discover that their friendship has withstood the test of time for good reason.