Writers frequently overlook radio and television as sources of information. News and information programs on television, such as 48 Hours, might help you learn about the conversation you plan to join. To examine the programs in detail, you might want to record them. In addition, check the Web for radio programs and transcripts. National Public Radio’s news information program All Things Considered, for instance, has audio archives going back to January 1996 that you can listen to online (visit www.npr.org and search the program’s archives).