I'm sorry to hear that you're having this issue.
I don't know what would be interfering with the television, or if it's an internal issue. I would recommend calling 800-SAMSUNG to see if a service inspection would identify the issue. You're likely well under warranty, so that would be my suggestion.
LED TV 40"
Model : Samsung UN40B6000VF
I bought this TV less than 3 weeks ago and I'm already frustrated the hard way.
it is the 3rd time the tv turn it self off, when i turn it back on it stops responding to the remote control, only channel up and down works , nothing else, cant up/down volume, cant turn it off, cant switch inputs, i cant do anything at all, (even with an universal remote control)
the bottom light blinks every-time a click a button from the remote but it does not respond to it.
neither it respond to the touch button located on the tv's front panel.
I'm using the TV along with Sony sound system STR-KS2300. the issue happened before and after i hooked it up with the sound system.
i was able to found a work around : unplugging it from the wall for sometime, it start working just fine.
i really need some help here,
thank your for your time