If I buy content in 4K am I likely to experience any issues playing on my existing 1080 plasma? I’ll be upgrading to 4K fairly soon and the 4K version is the same price as the 1080 version. I’ve seen comments that downscaling can cause stuttering and wondered if anyone had actual experience of doing this. I have the Amazon 4K stick and a 400 mbs connection. Thanks in advance for any help with this.