I'm the user who posted the suggestion to use the * button on the remote, go to Accessibility, then SAP, and change the SAP over to Spanish. It worked for about an hour, then the stuttering/choppiness started again, and then the football commentators were all interpreted into Spanish language. So ultimately that didn't work, even though initially it significantly reduced the stutter/choppiness. As of today at 12:49pm EST, the accessory iKonvert digital tuner attached to antenna and routed to the TV via coaxial cable and HDMI is working perfectly. When I switch over to OTA TV through the Roku/TCL menu and select the OTA NBC & Fox local channels, the audio is worse than it's ever been. I've decided to use the Roku/TCL menu for streaming channels and apps, and when I want to watch OTA channels, I power on the iKonvert digital tuner and use that remote control and menu. It's more complicated than it should have to be, but it works.