With a giant banner looming over Comic-Con from the nearby Marriott and marketing all over the San Diego International Airport, Legends made a splash in its geekfest debut before a word was spoken or a clip was played on today’s panel. Not that the upcoming TNT spy thriller didn’t seal the deal with the 1,000 plus fans in Room 6A of the Convention Center – especially when the star Sean Bean showed up, kind of. Before the short panel got under way, the audience was treated to a full preview of the first episode of the TNT show introduced by Bean himself.