Xbox live tv picture won't stretch. Stuck in sd

Got a new cable box today and hooked it up via Hdmi. While watching tv it shows in sd 4:3 ratio and I want the screen to be filled up for 16:9 hd viewing. Even when I hit the start button while watch tv and select "zoom" or "stretch" the picture stays in
4:3. Anybody have any ideas? My televisions displays tv (when Xbox one isn't on) in 16:9 just fine.

:)

 

directv genie box SD pictures being squeezed despite genie settings

I am having same issue...directv genie box...picture is set to native and stretch but Xbox one decodes SD picture strangely, squeezing it small with black bars around borders of the small image. Unhooking the genie box and going straight to the tv does
not cause the issue, and the SD image is properly stretched to fit. Unhooking my directv from Xbox one until this is addressed.

 

tv pictures

I am having same issue...directv genie box...picture is set to native and stretch but Xbox one decodes SD picture strangely, squeezing it small with black bars around borders of the small image. Unhooking the genie box and going straight to the tv does
not cause the issue, and the SD image is properly stretched to fit. Unhooking my directv from Xbox one until this is addressed.