Object not displaying media correctly

I’m trying to get media (video) to play on a TV that I’ve imported from an external program. The TV has a separate element for the screen (which adequately shows a static image as you can see behind). The media material that I’ve created also displays fine if I insert a plane (as you can see to the left), but seems to stretch the video when applied to the screen element of the TV object.

Here’s the video:

Any thoughts on why it would do this?

The issue here appeared to be with the Datasmith model import. I ended up deleting the faces and adding a new plane which I then applied the media material to.