The closing date wasn't announced in a prepared statement from USA's New York headquarters today.

Diller, chairman/CEO of the international conglomerate, is buying Interval International from Chicago-based Willis Stein & Partners through the acquisition of holding company Interval Acquisition Corp.

"Another notch in our belt of interactive services with real revenues, earnings and strong growth--one in which online migration over time is assured and one where many of our current services interrelate, providing all kinds of new opportunities for each other," Diller says in the statement.

USA projects Interval International will generate 2003 revenue of $220 million and $60 million of EBITDA. Interval joins USA's global stable of businesses such as Ticketmaster which operates Match.com and Citysearch; Expedia Inc.; Hotels.com; and TV Travel Group.USA was formerly known as USA Networks.

Willis Stein, chairman of his private equity investment firm, owns 60% of the company. The remaining 40% is held in 10% ownership increments by Marriott International Inc., Hyatt Hotels, Carlson Group and Interval Management.