What do you mean by "why the remote wont do anything while the tv is doing this"?
If I understand your descrpition correctly, your TV is powering on and then automatically turns off, then on and so on?
Does the power light /power indicator flashes or is colored differently than normal?
My LG tv is doing something similar just started last night, I will press the power button and it's turns it self right back off before the tv can even pop up with it's logo . . I do not know what to do. I've unplugged things left it for a bit tried to make sure everything was tight and secure. Anyone know what I need to do or what causes this to happen?