You’ve read all of your free items this month. To register, get added benefits and unlimited access to articles, Become a Member. Already a Member? Sign in. Advertising Age Article Abstract The Cost of 'Lost'? ABC Asks $900,000 for Finale Slot in Last Episode Priced Just Under That of Oscar Berth and at 400% Markup to 30-Second Spot Sold in Upfront By Brian Steinberg, Published on March 29, 2010 1 Want more Access, Content & Connections? Upgrade to Membership. We are glad you are enjoying Advertising Age. To get uninterrupted access and additional benefits, become a member today. Become a Member Already a member? Log in.