Green and purplish blueish spots on the tv screen

Your blue picture tube is failing. Invest in a new TV. "If" you can find a new set of tubes(you have to replace all 3 red blue and green) they are around $800-1000. Not cost effective. Run the TV into the ground if you want to wait but do not invest any repair money in my opinion.

Purple Panasonic PC>TV Problem:
The VGA cable uses three primary color RGB channels.
Red, Green, and Blue.
The picture is made up of pixels or dots arranged in a grid along the "X" horizontal axis and "Y" vertical axis.
The computer mixes the intensity of each color channel to create a unique color per pixel.
All RGB at 100% creates white.
R+G creates yellow.
R+B creates magenta, ie purplish.
G+B creates cyan.
So a purplish tint sounds as if your Green wire has no signal, which may indicate a faulty VGA cable or VGA socket.
Put another way, (R+G+B)-G=R+B=magenta.
So try another VGA cable, spray all socket pins with "Servisol " or similar contact cleaner.
0%<--------->100%
Cyan<------->Red
Magenta<--->Green
Yellow<------>Blue
All 0%=Black; All 50%=Grey; All 100%=White.

Your dlp chip needs replacing. It's a job to do but you can do it.

You have a projection TV - basically a red, green, and blue spotlight is shown onto the back of an opaque screen that creates the color picture you see. The spotlights you are seeing is common for a TV of this vintage and type.

According to the user's manual, you should ideally be sitting no closer than 10 feet to the screen.

Sitting closer to the screen may enhance the phenomenon you are experiencing.

PANASONIC..PT-52LCX15. STARTED TO A LIGHT COMES ON THE SCREEN. THEN TWO LIGHTS. FINALLY TV DONT COMES ON. I PUT ON THE TV, AND ON BOTTON START BLINKING AND TV DONT COME ON..I TAKE OUT THE TV LAMP..IT LOOKS GOOD NOT BURN. SHOULD I REPLACE IT??

the lcd panel for the blue is bad normally you would have to replace the engine but i know a place where you can get it rebuilted for a price cheaper than the engine go to
N-home tvservice.com for some answers

the deguesing is not working of your tv.or maybe you have a load speaker near the tv. take it away near the tv it damage the color of your tv set.

if you have warranty work they will direct you to the service center you will need, I do not know of any bb that service tv's.

picture tube is goin bad............