What does PSIP stand for?

The term PSIP stands for Program and System Information Protocol. This protocol is essential in the realm of digital television, specifically in broadcasting, as it provides metadata about the program being transmitted and the capabilities of the broadcasting system. PSIP helps televisions decode information such as the program guide, channel information, and timing, which ultimately enhances the viewer's experience.

By embedding this information in the broadcast signal, PSIP assures that the receiving devices can interpret and display content correctly, facilitating functionalities such as electronic program guides (EPGs). This protocol is vital for ensuring seamless navigation through available programming for viewers in a digital broadcast environment.

The other options refer to terms that do not relate to the standardized protocol used in the broadcasting context, thus highlighting why they are not applicable in this case.