I had multiple streaming apps on my 65" samsung curved 4k TV not working (Netflix, Hulu, Amazon Instant Vido, Flixster, Vudu etc) The only thing I had to do to fix it was turn the "Instant On" Feature off. It now takes a few extra seconds to turn on, but all my apps work properly. I have not tried to turn it back on and see what happens, I'll try that next.