Linked from
The 9 pages that link to Composite video, each with the reason it gives.
NTSCRelated: NTSC color broadcasts encode these components together in a composite signal.
VHSRelated: VHS recorders commonly accept and output composite video signals.
LaserDiscRelated: LaserDisc commonly stores video as a frequency-modulated composite signal.
Videocassette recorderRelated: Many VCRs record and output composite video signals.