My HLP5067W is 2.5 years old and out of warr. Recently, it has been dropping 1 or 2 of the 3 primary colors. Any one of the three might show (ie all magenta). This mostly only happens if the TV is on for one or more hours and the source is changed (eg going from DVD movie to Reg TV). Sometimes the TV will go black but is still on (sound plays)
One time, the color was all blue and the image on the screen was reversed!
If I shut the TV off for a few minutes, it will go back to normal