Appeared on Prisoners of Gravity, Season 4, Episode 16, titked "Mystery/SF", an episode covering the crossover between mystery and science fiction. The interview TV series is produced by TVOntario and hosted by Rick Green.
Snow notes: This week, Commander Rick takes a look at the cross-over between mystery and science fiction, with guests P.D. James, John E. Stith, Sean Stewart, Vernor Vinge, Martin H. Greenberg, Maxim Jakubowski, Garfield and Judith Reeves-Stevens, Sharyn McCrumb, Mike Resnick, Beth Meacham, and Jane Yolen.
Watch it here.
Here's more about the Prisoners of Gravity series.