The Lewin Group’s Elisabeth Lewin was featured for an article for Wired:

Why a recap and no full show? While audio-only versions of sitcoms and soaps might appeal to hard-core fans, networks aren’t free to repurpose everything wholesale, thanks to copyright issues. In many cases, the music on TV shows is cleared for a few broadcasts, but not to sit forever on someone’s hard drive or iPod, said Elisabeth Lewin, publisher of Podcasting News.

“The very nature of a podcast means … you can recopy it and share it freely,” Lewin said. “The people who hold the rights aren’t really going to be wild about the idea.”