The 55" level used to be seen as the ultimate in TV screens. Now, of course, screens just keep getting bigger and bigger. However, the range above 59" is never going to be as wide for the simple reason that for the vast majority of people a 65"+ screen is just too big for our living spaces, rooms and houses.
However, the 50"-59" range (and particularly the most common sizes of 50" and 55") have become key ones to manufacturers battling out in the big screen TV marketplace and this means that your choice of second hand 50"-59" TVs for sale is ever-growing.
The 50"-59" range seems to be the sweet spot that offers the latest technologies, large screens and more reasonable prices. There's a good variety available of second hand 50"-59" TVs too. You'll see the latest OLED and 4k Ultra HD technology and some plasmas available. 1080p Full HD should be the absolute minimum in terms of resolution offered and you can pretty much guarantee that connectivity and Smart options will be extensive.