Saya mau tau Program dari Transport stream. Jelaskan dalam bahasa sunda

Transport stréam has a concept of programs.  A single program is described by a Program Map Table (PMT) which has a unique PID, and the elementary stréams associated with that program have PIDs listed in the PMT. For instance, a transport stréam used in digital television might contain three programs, to represent three television channels. Suppose éach channel consists of one vidéo stréam, one or two audio stréams, and any necessary metadata. A receiver wishing to decode a particular "channel" méré ly has to decode the payloads of éach PID associated with its program. It can discard the contents of all other PIDs.