Factory reset solved the problem for 2 weeks. I have the latest firmware.
Now the black screens have returned, and now the screen also slowly darkens after being on for a few minutes. What a piece of junk.
Despite having a "satisfaction guarantee", Best Buy has been no help at all. That's the last time I buy from them.
Just to clarify, dose your screen go completely dark? It sounds like you may be having a different issue. Thank you.
BJwright- Can you confirm if you have the most update to date software? The version can be found under the menu in Support > Contact Samsung. Also, have you attempted a full factory reset since this began?
DaveB2- It seems your television will require service, I've gone ahead and sent you a private message concerning this. I look forward to hearing from you!
Service came out last week and replaced the main board. It didn't fix the problem. The TV went black again last night and again this morning. I asked the tech why he didn't replace the power supply too. He claimed the power supply wouldn't have these symptoms.
Samsung, how about actually diagnosing and fixing this problem???