I have a 27" Toshiba TV made around 1992.
It has an intermittent problem of not turning off. Neither the remote control or pushing the on/off button on the TV will turn it off. It flickers as if trying to turn off, but the picture stays and the sound disappears. When you push the button again, it blacks out and then acts like it was just turned on and working ok. I have to unplug it to turn it off. Then the problem might go away for a few sessions.
punchbuggyblue