school me in 4k
upgrading tv looking at a 4k SUHD samsung 70" tv. i currently have a dolby receiver with 5.1 surround sound.
Currently all my electronics, Telus cable, Xbox one s, minix blue ray are all connected to my receiver and one HDMI cable goes out to TV.
do I need to upgrade to a 4k receiver to get the actual benefit of the 4k tv and cable/minix/Xbox?
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