I have two owned DSX5500. Both work fine. I may own (not lease) an HR22 or HR23. I have the original dish on roof. I understand that I will need a newer dish for the HR22 or HR23 to obtain the HD TV. Is there any dish that will work with both the HR22/HR23 AND the Phillips DSX5500? I have a tube type TV and a newer LCD/HD 1080 TV. Or do I trash the DSX5500's?