I am working on my third of fourth failed H20/H21. They have failed 2-3 years after I receive them almost always the same problem start to turn off and on and then just dead. Today NY Times writes of bad electrolytic capacitors in Dell and many other computers and I can't help but wonder if this is plaguing these receivers. DTV is nice always send a new one that works well at first but then they all die no matter the model H21 is no better than H20. I have many older SD receivers in the house no problems. Has this been commented on in this board?