does anyone know which episode in the 90-91 season marked the last appearence of Lisa Bonet? I notice she isn't even in the second half of the season. I am not a season 7-8 fan, but I would like to know which episode marked her swan song.

She really didn't have a swan sone. Her last ep was in 1991. She and Martin were real eager to get together upstairs in the bederoom after Martin returns from overseas. Theo had wanted to get the house to himself so he could have a romantic dinner with his girlfriend but people kept coming through.