The BBC did an End Notes feature on the legacy of David Foster Wallace, which you can stream at their site here, or can download as an mp3 here [w/ thanks to my pal Eric].
Thanks for the mp3 link.
A less exploitative/reductive take than usually occurs. I enjoyed their partial reliance on recordings of him speaking.
Reuploaded here, in case the mediafire link dies (which was glitchy for me anyway):