Long before he was assuming identities and seducing gorgeous women as super-suave spy James Bond, Pierce Brosnan was, well, assuming identities and seducing gorgeous women as super-suave ''detective'' Remington Steele. For four glorious seasons on NBC, Brosnan's con artist-turned-investigator brought dandyism back into vogue. Nattily attired and generous with arcane film factoids, the pseudo-sleuth coasted on the diligence of his colleague (Stephanie Zimbalist) but oozed such charm that she -- and audiences -- adored him anyway. Now that Brosnan's had his fill of martinis and international mayhem, why isn't the show that jump-started it all on DVD? Fox, which holds Remington's rights, says the show is indeed ''on its radar,'' but we're Steele waiting. . .