Comcast is making a push into gaming by partnering with Amazon to bring that company’s gaming platform Luna to its X1 set-top boxes and Xumo Stream Box, the companies told The Desk on Thursday.

Comcast already streams 4K content to Samsung's most recent TVs with its Xfinity in UHD app, but soon the cable company will produce its own 4K set-top box. Today Comcast announced that this device, ...