The present disclosure relates to a content supply device, a content supply method, a program, a terminal device, and a content supply system, which are capable of implementing rapid zapping between channels in DASH. The content supply device of the present disclosure generates a zapping segment stream by delimiting zapping streaming data among a plurality of pieces of streaming data into minimum units when reception of the streaming data is switched, according to a common timing with another channel, unicast-delivers the zapping segment stream, multicast-delivers the zapping segment stream, and generates a metafile for a reception side to receive the zapping segment stream that is unicast-delivered and multicast-delivered. The present disclosure can be applied to a system that delivers content in a streaming manner.