I PURCHASED A TOSHIBA 46HM84 AND I HAVE REPLACED THE TWICE THIS YEAR. I AM VERY DISSATIFIED WITH THIS TELEVISION. I HAVE NEVER SEEN A TELEVISION DO THIS. I FEEL THAT TOSHIBA SHOULD REFUND EVERYONE THAT HAS THIS TELEVISION OR REPLACE IT WITH ONE OF THEIR TELEVISION THAT DO NOT HAVE THIS PROBLEM. I PAID 2000.00 FOR THIS T.V. AND AFTER ALREADY REPLACING 2 BULBS I FIGURED OUT THAT A THE COST OF 389.00 OF A LAMP AFTER PURCHASING ABOUT 5 I COULD HAVE BOUGHT A NEW TELEVISION. THIS IS NOT GOOD BUSINESS AND THOUGHT THAT BUYING A WELL NAME BRAND I WOULD GET BETTER QUALITY BUT I GUESS I WAS WRONG.