In short the TV is unlike the PC in many ways. If the site wants TV viewers they'll have to cater to that and sometimes the "mobile" version of the web site works.

I offered what I found with the YouTube app that indeed has the same issue on other devices so here's a note about the Flash player which suffers the same issue as the prior app. Link ->;forums06#message5354305

Be sure to wait for the Ambassador's answers but posting each item as a separate post may slow down your answers.