C-SPAN Classroom's resources can be used by anybody, while a free membership service provides some added benefits. Video clips (based on Real Player) and other resources are freely available, with many links pointing to more content.
C-SPAN Classroom is a free membership service; anybody can use these online resources, while the membership offers a variety of added benefits (programming updates, teaching ideas, etc.)
Along with video clips (based on Real Player), C-SPAN Classroom also offers other resources, such as text info, pdf worksheets and links, all of them free of charge and available to the public
Most of the available links point to additional and well-selected resources about the specific video clip and/or topic, even outside the C-SPAN network