I bought a Hisense 65" Series 6 Roku tv recently and I started noticing a line going along the top of my screen. Thinking it was a factory defect, I returned it (walmart stopped doing exchanges and they didn't have the same size for me to buy again.) After looking around, I realized it was a software issue and that there was or is going to be a fix, but that article was for a TCL tv. Will there be a fix for all roku TVs? If I get another roku tv, I want to make sure there's no issue like this.