We have a 4 year old samsung hlp5063,  about a month ago it started to lose the picture.

We have replaced the lamp and then did a reset (on the phone with SamsungUSA).  that worked for about a day.  Now sometimes the TV works for days and sometimes for seconds.  We never lose the sound only the picture.?  for service we will have to $150 pick up charge-  is there anything else we can do ourselves for this TV?