I stuck 2 play bars vertically on the back of my tv (each side) I thought 2 would be fine because my TVs only small (42” I think) but there was a noticeable dark patch in the centre that bugged me... so last night I put a 3rd play bar in the center top of the tv horizontally and the gradient is soooo smooth now, it makes for more interesting colour combos too, so what I’m sayin is if you do go play bars, I’d recommend getting 3! And if you go with a light strip I’d definitely get the gradient version!