The Big Pilot Episode

S1 E1: For once in her life Mona thinks she has won out over her spoiled half-sister Dee Dee when Dee Dee moves into the same building and Mona finagles a move into the penthouse apartment, but she quickly discovers her new living accommodations are not what she expected. Later, things appear to go from bad to worse when a guy Mona is pining for falls for Dee Dee. But Dee Dee surprises Mona and shows her that there can be some benefits to having a half-sister .