Producers of Boston Legal plan to use footage from a 1957 Studio One drama, "The Defenders," featuring William Shatner, for an April 3 episode. In the old-time episode Shatner's character Denny Crane comes face-to-face with a hostage taker, who has nursed a grudge against him stemming from a court case 50 years earlier. (The original drama also featured a then unknown actor credited as "Steven McQueen." No word whether the McQueen footage will also make it into the Boston Legal episode.) "The Defenders" video was recently found in storage at the former Westinghouse Corporation, which sponsored Studio One, and is available on DVD.