What is the primary standard for color television transmission used in many countries outside the United States?

The primary standard for color television transmission widely used in many countries outside the United States is PAL, which stands for Phase Alternating Line. This system was developed in the 1960s and is characterized by its ability to produce a stable and high-quality color image. PAL is especially known for its improved color stability, which reduces issues like color shifting and picture flickering that may occur in other systems.

Many European countries and regions, along with parts of Asia and Africa, have adopted PAL as their broadcasting standard, making it the most utilized format internationally. The 625-line resolution and 50 Hz frame rate contribute to its effectiveness and popularity in these regions. While other standards like NTSC and SECAM are also used globally, PAL remains the predominant choice for color television in many countries away from the United States.