Staundart-defineetion telly

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(Reguidit frae SDTV)
SDTV resolution bi naition; due tae historical raisons, different kintras uise either 480i or 576i as the staundart-defineetion pictur format.

Staundart-defineetion telly (SDTV) is a telly seestem that uises a resolution that isna conseedert tae be either heich-defineetion televeesion (720p, 1080i, 1080p, 1440p, 4K UHDTV, an 8K UHD) or enhanced-defineetion televeesion (EDTV 480p).