I might have the choice of both, viewing around 5m away. My questions are; 1 - In theory will the 42" give a sharper image due it having more pixels on a smaller screen. Or will it not matter due to watching distance. 2 - Are both HDMI inputs not up to much as mentioned on this forum. 3 - Does a scaler, i don't really know what it does, make that bigger difference. 4 - Can you fit 2 HDMI boards if reqiured. 5 - And lastly what carn't these screens do which might limit there playing abillity in the future. Thanks in advance.