I think there's a bit of rose tinted glasses going on with our memories of SD TV, too. A decade or so ago I plugged an old PS2 into my 50" plasma TV (which I bought just after plasma TVs got suddenly cheap :D ) and then spent a good 10-15 minutes trying to find a setting to increase the resolution before realising that, no, that's just how things looked back then, except now it's magnified so it's really blurry.