Season 17, Episode 9 - "Like Moving Out and Moving In"
Roz and Bulldog decide it is time that Denise moved out of the house. Roz agrees to help Denise look for an apartment, and realises that she cannot make a sound judgement because she is ranking the potential candidates based on superficial things – such as the handsomeness of the landlords. Roz finally chooses an apartment for Denise without her consent, but a week later she struggles to admit that it was probably a really bad choice. Roz is faced with letting Denise back into her home, and refusing to take that leap just yet, she looks to the employees to help her out. Gil happily invites Denise to move into his ritzy penthouse, where she finds that his rules and attitude are more tyrannical than those of her sister. Denise finally learns what it is like to live with someone you can’t stand, and decides to make amends with Roz in the hopes of moving back in.