if in USA, don't use analog cable, AV input or component input use 1. antenna, 2. digital cable, 3. digital satellite dish, or 4. HDMI input streamming from internet. that way, most programs will be normal and clear, but local-made shows or early morning infomercials will 两侧留有黑边.
【在 c**2 的大作中提到】 : if in USA, don't use analog cable, AV input or component input : use : 1. antenna, : 2. digital cable, : 3. digital satellite dish, or : 4. HDMI input streamming from internet. : that way, most programs will be normal and clear, but local-made shows or : early morning infomercials will 两侧留有黑边.