June 10, 2015 3:49 PM EDT
Actually, you can play 360 games on XB1, but it's clunky. You have to run an HDMI cable from the 360 to the XB1 HDMI input port. Then, you select "Watch TV" (or say it if you have Kinect).
Like I said, a bit clunky since you still have to use the old console.