The Director's Cut of "Pretty Woman" features additional dialogue during the first encounter of Edward and Vivian; additonal scenes featuring Carlos the pimp chasing after Vivian for the money Kit owes him; a longer restaurant sequence, and a longer montage of scenes when Edward takes the day off from work to spend more time with Vivian on their last day together.
The TV version has Kit saying "Cinderella" rather than "Cinde-f**kin'-rella" when she's trying to cheer Vivian up. Scene is re-shot so Kit's mouth matches dialog, rather than just a re-dub.
In the TV version, rather than Kit saying "50 bucks, Grampa. For 75 the wife can watch," she say "My Grandmother has curtains just like that" when looking at the woman's dress.