A:Answer That is really a question of how you have you Bose system setup. IF your Bose system is HDMI pass through than you will not have any 4k HDR content on this tv because you HDMI 1.4 (or older) receiver will block it all. Dont fear tho, there is a cheap solution for this. Amazon has a product called HD fury AVR key, this splits the audio and video 4K signal from a source like a 4k bluray player and sends the 4k video signal straight to the TV and the audio signal to the receiver. As for streaming content, this TV supports ARC (audio return channel) on HDMI 2, so if you hook you receiver to this HDMI port the audio from the TV can be sent to the receiver, but there are 2 things, your receiver has to support ARC, and ARC cant not pass HD audio formats like DTSMA and Dolby True HD, it can only pass Dolby digital. But if your receiver is 12-15 years old, its going to get increasingly harder to incorporate it into your 4K setup. You may want to start thinking about upgrading your receiver, 12-15 years old is 3 HDMI revisions old and is considered 2 generations obsolete. I really dont care too much about having the newest things, but with HDMI revisions the way they are, I pretty much dont have any options but to upgrade as HDMI does, because of the HDCP handshake policies. HDMI 2.0(a or b) will not allow 4k content to pass unless every HDMI device in the chain is HDMI 2.0 and is HDCP 2.2 compliant. As far as direct TV, I would imagine it will be the same thing as I mentioned above, if direct tv has 4k content it will be blocked and downgraded to 1080.
