Hi all. So I have a bravia 4k TV. I signed for a trial on net flix 4k sub and also there are 4k vids on YouTube. The pictures I am seeing look fantastic but I've read that Netflix only send 4k if you have 20Mb broad band or so. So that Begs the question about YouTube too. I only have roughly 4Mb broadband speed. Am I getting 4k images??