Comcast Corp. is unveiling for employees today a holiday show on its video wall in the lobby of the building, at 17th and Arch Streets in Center City.

David Niles, the New York creative guy who developed the original content for the Comcast video wall and helped update the Christmas show at Radio City Music Hall in New York in the mid-1990s, edited the 12-minute show.

Comcast hopes to make the show an attraction and have it complement the traditional Wanamaker Christmas lights show at the Center City Macy's.

The show is not expected to be open to the public until Thursday.