In a way; its a time where some of the largest media outlets come out to the parks for a premiere of their new attraction, show, or area altogether. Many major theme parks have done it, with Universal Hollywood being an example of Media Previews from a few days back.
Oh, ok but one more thing though (and sorry for the stupid questions) but does that mean its only open to the media outlets and the VIPs or is it also open for the public?