I am also looking for a 3d tv. Till last year June July, Amazon.in had a lot of Sony 55' 3d TVs, I didn't have money at that time to buy. All of a sudden, all sellers have sold it out at a stretch in a month. After August of 2018, I could not see even one TV. I am also vigorously searching; if anything comes to my knowledge I will let you know, if you come to know anything, please do let me know. But I want only a new piece; used ones we cannot rely upon.
Goodluck.