How do i watch a 3d movie on my 55"thorn tv?

To watch a 3D movie on your TV, you need source 3D movie and a pair of 3D glasses that matches the 3D type of your movie. If you only have a 2D movie, then you can use some software to convert it into 3D version. I found a blog including some 3D movie makers and how to make 3D movies: https://all-multimedia-solutions.blogspot.com/2021/08/everything-about-3d-movies.html

The tv automaticly determines if it should go to 3D mode as long as the DVD player or say like PS3 or PS4 is connected to HDMI (yes those two game consoles will support HD Blueray 3D and DVD 3D movies) if the TV isnt displaying 3D look into the video settings of your TV to enable that ability also your TV will come with 3D glasses if the TV supports 3D