Property:AV system
This property stores the analog video color systems supported on baseband AV inputs (composite/S-Video).
This is separate from RF tuner standards. Use "NTSC" for NTSC 3.58 (standard NTSC); use "NTSC 4.43" only when explicitly confirmed.
Allowed values: NTSC, NTSC 4.43, PAL, SECAM
Text NTSC NTSC 4.43 PAL SECAM