Thank you for choosing justanswer.com I will be glad to assist you today. How long have you had the TV?
Does the TV work fine when using the on off button on the TV?
Can you check that for me please real fast
Can you also tell me if there is a light or anything that comes on when you push a button on the remote just so I know what we are dealing with?
Ok sounds like the TV is operating just fine otherwise the TV would be having problems as well if it was a blown circuit.
Can you tell me the model on the back of it by chance?
If there was I would have no problem helping you on that one
Have you been trying to use it with a universal?
That's not good so basically the remote that is universal is failing as well and it was never reset or anything at all correct?
No change of batteries no battery failure?>
The real TV remote fails as well as the comcast universal
It's possible now try the other remote the one that came with the TV
More than likely it took the batteries a moment to charge the remote and get current to it.
Let us know if you have any other problems
No problem and good night