Honestly, if you live in the U.S., generally there are two times during the year which you can likely beat Prime Day savings on TVs. They are around November, or around the time of the Superbowl (on February 4th this year).
I would wait for one of these, especially if someone might be in the market to buy either a PS4 Pro or XBOX One X around the holidays.
If you can't wait, or don't want to wait, different story.