Component video uses three analog signals (Y, Pb, Pr) over 75-ohm RCA leads to preserve color detail. It still serves legacy gear, but HDMI now handles higher bandwidth, audio, and copy protection for modern 4K/HDR content.
An updated explanation of what "HDTV Ready" meant, why the label was useful in the 2000s, and what buyers should check today - native resolution, inputs (HDMI/HDCP), and modern standards like 4K/UHD.
"HD Ready" originally meant a TV could accept HD signals (720p/1080i) but didn't guarantee a native 1080p panel or built-in tuner. Today, look for native resolution, HDMI version, HDR, and HDCP support rather than legacy badges.
DVI and HDMI use compatible digital video signaling, so passive DVI↔HDMI cables pass video reliably. HDMI adds audio and modern AV features (ARC/eARC, CEC, higher bandwidths) that DVI lacks. Use passive adapters for video-only needs; use active converters or HDMI gear when you need audio or advanced HDMI features.