Don't confuse these three terms. VCR refers to any video cassette recorder, including 8mm or Beta. VHS stands for Video Home System, first introduced by the Japanese Victor Co (JVC). VHS  refers to videocassettes with specific physical dimensions, tape dimensions, and recording format, and the recording equipment that uses such cassettes. A VHS cassette can contain programs in any of the formats NTSC, PAL, or SECAM, and purchasers of videos in gift shops should be aware of this. VHF (very high frequency) refers to a portion of the frequency spectrum, approx. 50 to 200 megahertz, used for broadcasting and includes TV channels 2-13.