Question: what is the difference between pal ntsc and secam?
Answer: An NTSC picture is made up of 525 interlaced lines and is displayed at a rate of 29.97 frames per second. PAL is an abbreviation for Phase Alternate Line. ... A PAL picture is made up of 625 interlaced lines and is displayed at a rate of 25 frames per second. SECAM is an abbreviation for Sequential Color and Memory.