TV keeps shorting

[Missy33]

I have a little portable tv which power off a 12v adapter. I have only had it a couple of weeks, last week it went off for no reason and would not work. I replaced the adapter and after watching for 1/2 an hour, it went off again. I am trying to find out what is causing this.
Thanks

[pug100]

It could be that the power adapter isn't up to the job and is overheating due to the tv taking too much current.

What is the rating ( how many Volts or Watts ) on the tv and the power adapter?

Is the tv an lcd type or crt (old fashioned ) type. The older tvs need more power due to the way they work.