Since the formal adoption of digital video broadcasting's (DVB) widescreen HDTV transmission modes in the early 2000s; the 525-line NTSC (and PAL-M) systems, as well as the European 625-line PAL and SECAM systems, are now regarded as standard definition television systems.
525 మరియు 625-లైన్ వ్యవస్థలు ఇప్పుడు ఏమి పరిగణించబడుతున్నాయి?
standard definition television systems