Full screen streaming problems

Every time I stream video from my Mac (OS Sierra Version 10.12.2 ) to my Vizio hdtv (Model M420SL) online using Chrome for example on the ESPN or TNT websites I always encounter two similar problems and they occur when I use Chromecast or plug it in with an HDMI cord. Either the screen is zoomed in too much and it won't let me zoom out or only 1/4 of the screen is showing the video (the top left of the screen) and the other 3/4 of the screen is just white, but when I zoom out my tv screen goes back to normal and displays everything. These problems only occur when I enter full screen on the video playing, they are very annoying and I can't seem to figure out a solution. I've tried adjusting the acceleration settings on both Flash Player and the Chrome settings along with clearing browsing data, nothing seems to work. Everything is up to date and I've restarted my Mac and TV several times. I've searched all over the web but I cant seem to find an answer, please tell me there is a solution to these problems.

Thank you,

Jorge