Video settings on Comcast cable Box to view 4K UHD content

The video output resolution 1080p60HD (best Available) stays the same for all types of content. 

Xfinity Support information "4K Ultra HD (UHD) and High Dynamic Range (HDR) on Xfinity TV" indicates 4K UHD /HDR content requires Xfinity X1 XG1v4 (AX014ANM) or Xi6 TV box.

My installed box is XG1V3 ( AX013ANM).  Do I need the Cable box changed to XG1v4 (AX014ANM) to suppoort 4k video?

That is correct not all boxes are capable to display content in 4k. To view content in 4k you will need to have a XG1v4 for DVR OR XI6 non DVR. It would be my pleasure to assist you with getting either of these options swap. Could you please send our team a direct message with your full name and full address? Our team can most definitely take a further look at this issue. To send a "Peer to peer" ("Private") message:

Click "Sign In" if necessary

• Click the "Peer to peer chat" icon

• Click the "New message" (pencil and paper) icon

• Type "Xfinity Support" in the "To:" line and select "Xfinity Support" from the drop-down list which appears. The "Xfinity Support" graphic replaces the "To:" line

• Type your message in the text area near the bottom of the window

• Press Enter to send it

Thank you for replying with a DM as advised. It would be my pleasure to assist you with looking into get 4K capable equipment to you.

First, I will need to get some basic info. Please provide your full name and the full service address?

@XfinityDanielC​                      Accepted Answer.