Phase Alternating Line (PAL) is a colour encoding system for Analog television used in broadcast television systems in most countries broadcasting at 625-line / 50 field (25 frame) per second (576i). It was one of three major analogue colour television standards, the others being NTSC and SECAM.

Analog television encoding systems by nation; NTSC (green), SECAM (orange), and PAL (blue).

Almost all of the countries using PAL are currently in the process of conversion, or have already converted transmission standards to DVB, ISDB or DTMB.