1. An electrical signal containing timing (synchronization,) luminance (intensity,) and often chrominance (color) information that, when displayed on an appropriate device, gives a visual image or representation of the original image sequences. Note: Correlated audio is included and usually implied. 2. Pertaining to the sections of a television system that carry television signals, either in unmodulated or modulated form. 3. Pertaining to the demodulated radar signal that is applied to a radar display device. 4. Pertaining to the bandwidth or data rate necessary for the transmission of real-time television pictures. Note: In practice, the baseband bandwidth required for the transmission of NTSC television pictures (not including the audio carriers) is approximately 5 MHz.