It probably takes a mathematician to get into this hole but have to make sure on what is right and what is left? Me and my builder decided very early on that L/C/R were determined as I look at the TV. This was important as we are remodeling the room BEHIND the HT as well--at which point, wires etc for R/L reverse. Now it just occurred to me today that the same applies to surround and rear speakers. Is the "left surround" on the same side of the room as the L speaker? C L TV R LS RS LR RR Does it make any difference? PS Dumb and mathematician may well be redundant.