There's an old marketing saying. You can't sell what you don't have.
Apple hasn't had the production capacity of OLED screens. They have therefore bashed OLED screens and promoted Retina displays.
Samsung doesn't have a competitively priced OLED TV. They are having a hard time competing with the commoditized Chinese LCD TVs. What are they going to do for the next year until they can compete on OLED TVs? They can't just fold up their tents and lay off 10's of thousands of assemblers or sell at a loss LCD TVs.
Marketing says a new and improved Q dot LCD may convince some people to buy some of these TVs.