Jerky Playback of Apple Content on 4K Smart TV?.

Downloaded a couple of episodes each of two recent Apple TV series. They play ok on my PC through VLC player but when I load them on a usb stick and attempt to play them on my 4K Samsung Smart tv they are jerky as heck and impossible to watch. Other downloads from Netflix, Amazon etc playback just fine on the Samsung tv it is only the Apple tv content that I have a problem with. Has any one else experienced this and if so do they know what is causing it and how to fix it?.

Thanks, I'll try that.