Was at Best Buy and tried out a pair of the Sony TDG-500P passive 3D glass on the LG 60UH8500 and they are NOT compatible. I guess not all passive 3D is the same.
UPDATE: Got a response from an LG representative:
Thank you for contacting LG email services!
Upon checking the owners manual of the UH8500, the recommended 3D glasses is AG-F***, so yes AG-F220 and other “F” 3D glasses series will work to this TV.
I hope this help in addressing your concern.
Should you have any other questions, please feel free to contact us again via Email, Live Chat, or Phone by calling 1-800-243-0000.
Thank you for choosing LG!
Last edited by AR-Ballistic; 03-22-2016 at 02:30 PM.