If your television is powering itself off/on, and you have tested unplugging the unit as well as all software/firmware is up-to date (for those that can still access the menu), then service repairs would be recommended. To check warranty status you can message us here: http://bit.ly/2igAXKH
If the unit is out of warranty and you need pricing information, you can seek local authorized repairmen using this link: http://www.samsung.com/us/support/service/location
I am very sorry to hear you're having issues with your TVs. I certainly understand the frustration that comes along with any device failing but if your device is 2+ years out of warranty, there is no accommodation that can be made. You will need to have these TVs service with an out of warranty repair. If you would like to set this up for service, you can do this here. http://www.samsung.com/us/support/service/request
If you would like for me to look over your case and reach out to you directly, you can reach out to me via a private message.
Thank you for your understanding.
I was reading about a lot of issues in forums and videos about the transistor failure for power on samsung tvs. I just wanted to give a try before I am paying if really not needed. I opened the tv and disconnected the cable buses and connected again. It is working good now. Will keep an eye on that and contact an expert is really it happens again.
I have a brand new 65" SUHD Quantum Dot Samsung TV (85 series) that is less than 2 weeks old and it's shutting off by itself.
I've checked the timer, sleep and other clock modes and I don't see any settings that could be causing this.
I'm using the TV with an Onkyo receiver and DirecTV and an Apple TV.
I'm concerned this is an indicator that this product will have other issues.
Are you able to access the menu at all before it powers off? If so could you attempt to update the firmware/software and tell me if you notice any changes?