If the stb only has AV and the TV only has HDMI then you need an active converter. A passive cable will not work since AV is analog and HDMI is digital.
If you have the option of switching to a HDMI stb that would be the best option.
If the stb only has AV and the TV only has HDMI then you need an active converter. A passive cable will not work since AV is analog and HDMI is digital.
If you have the option of switching to a HDMI stb that would be the best option.