The TV NTSC Over Mode driver is likely related to video output from a computer or media device to a TV, specifically when working with the NTSC video standard. NTSC (National Television System Committee) is one of the analog television standards used primarily in North America, parts of South America, and some Asian countries. In this context, the "TV NTSC Over Mode" driver typically refers to software that allows a computer to output video in the NTSC format over a video output port (such as VGA, S-Video, or composite video) to a TV that supports NTSC.

This kind of driver may be used in specific hardware setups, such as video cards, external TV tuners, or USB-to-TV adapters, which enable your PC to display content on a TV or monitor using the NTSC standard.