I have a sony kp-41t65 tv acting like computer screen out of whac

I have a sony kp-41t65 tv, I purchased it new in 1998. Today it's acting like a computer screen at is out of whack. The tv screen at the top bowed inward towards the middle in the middle of the screen, bottom same as top but upwards. The colors are out making the letters and numbers look doubled. I realigned them it helped the middle to cear up but top and bottom still the same. If you could help Thank you very much!!!!!!!! Dennis