3D television was first demonstrated in 1928 but did not become popular until 2010 when major manufacturers began selling full lineups of 3D TVs. However, sales began declining in 2013 due to issues like the need to wear glasses, which caused headaches and eyestrain for many viewers. Additionally, early 3D Blu-rays were only compatible with specific brand TVs, limiting content options. While 3D TVs provided an immersive home theater experience, disadvantages like mandatory glasses and limited compatibility led to a loss of consumer interest before problems could be addressed. The technology may see renewed interest if glasses-free 3D or virtual reality integration can be achieved.