soundstage question

My speakers (eminent technology lft 8bs) are @ 4 feet from the back wall and I have an old crt rear projection tv between them.  I am replacing it with a new oled tv (primarily to remove the old big  box tv and improve the sound of my system) and can position that close to the back wall.  Any recommendations for placing that would be welcome.  My assumption is a wall mount would be best, but have any members used a wall shelf for a tv (base of tv is 24 inches)  or a stand that would least compromise the soundstaging?  many thanks.