Sam Waterston is most well-known as Assistant District Attorney Jack McCoy on the durable drama Law & Order. Fans can see him on TV multiple times a day thanks to the immense popularity of the show's numerous reruns. This Saturday at 10pm on ABC, viewers can see a different side of Waterston when he stars in the first segment of a four-part anthology series titled Masters of Science Fiction.

The series takes sci-fi stories from notable authors in the field and is narrated by Stephen Hawking. People expecting robots and aliens and massive ray guns will be in for a surprise, because the first installment starring Waterston, "A Clean Escape," is a psychological piece dealing with a man with severe memory loss, though it's set in the future with plenty of sci-fi twists.

Sam Waterston spoke to BuddyTV about how he got involved in Masters of Science Fiction and also about taking over the role of lead district attorney on Law & Order after 13 years.  Below you will find a complete transcript of our interview, plus the mp3 audio file.