TV Chromium support for sketchfab models

I would like to display models on a TV with a Chromium version 63 browser.
While the iframe loads, it only shows a black screen upon completion of loading.
Is there any chance for this to be looked into?

Hello,

Is this a smart TV of some kind with its own browser? Or are you linking or streaming to it as an external monitor? Can you open the browser console and see if there are any errors during the iframe load?