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

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.

Would be nice if there was a passthrough option. I have my Cable box set up to send SD channels in stretch and HD in Native to the TV. Now with the Xbox One, sicne it is doing a stretch again things still look fine and it adjusts between HD and SD, but
if I start the TV / Xbox with an HD channel on it shows in stretch until I manually go to an SD channel then back or go into the menu and change the setting.

My vizio brand new the game HDMI port is fixed to wide normal mode. So I can't change or use the other view modes using that port. When watching SD programming I can't stretch the picture but I hook the Xbox to any of the other HDMI ports I can change the
view. Since that port on my vizio is the only 60hz port and has the 120 effective hz rate ill suffer not watching SD in upscale mode. I could separate the tv from the Xbox but now I got used to switching and shaping tv while watching a YouTube or surfing the
internet I can't go back.

Well I don't think it has anything to do with the Auto detect by the Xbox one because I left that and just went into my cable box settings and made it where it just stretches the picture on SD instead of switching to 480 output. I think that's what causes
the lagging.

yup, the switch is on "AV". It's usually on HDTV when it's plugged into a HD tv, but I switched it to "AV" for the SD tv and still no picture