I recorded the Team Cul de Sac session and it's online at the Internet Archive. You can download it or listen from the site.
"When Richard Thompson, the creator of the comic strip Cul de Sac, was diagnosed with Parkinson's disease, his friend Chris Sparks began a fundraising effort to honor his friend. With Richard's support, he asked others to donate artwork featuring the Cul de Sac characters for a Team Cul de Sac book with proceeds going to The Michael J. Fox Foundation For Parkinson's Research. Now, join Chris Sparks and other members of Team Cul de Sac including Steve Conley, Matt Dembicki, SL Gallant, Roger Langridge, and others as they discuss the book, Richard Thompson's work, and their continuing efforts to raise funds in Richard's name." - from the program book. The panel also included Carolyn Belefski, Dawn Griffin, Donna Lewis, Joe Sutliff and was moderated by Mike Rhode.