These videos are hosted on YouTube. Once you click to play, you have some choices on how to view the 3D videos. Only my newest ones are in 3D. I have put “3D” in the title of those. Here are some of the choices you have to view them:
In the bottom right corner click on 3D to change viewing modes and select Red/Cyan if you are using colored glasses. You can also change the quality of the playback by clicking on 360p or 480p and selecting a higher number.
You can make the video larger by clicking on one four arrows in the far bottom right corner.
You may be able to see the video better if you turn up the brightness of your monitor since the glasses make everything darker.