After 8 yrs. of watching a 50"rptv I just set up my LG 50PK750. I don't remember seeing as many black bars on the sides that I am seeing now with the Cogeco hd box. I've tried every setting on the tv and the stb with no luck. As the tv is a plasma and still breaking in I'm concerned that it will cause issues with the set. I've searched every faq and thread on this subject,most of which are dead links. Any help would be greatly appreciated. P.S. it happens on hd and sd channels.