I have a C61 Mini linked to a H54 Genie which connects to my Vizio P65 4K tv, that is almost unusable. It started with audio drops and beeps which after much time with DTV customer service and a tech here twice, is a software problem they are having and trying to figure out. The main reason that I removed the C61 is that it takes so long to bring up a station once you have changed stations that my tv thinks it has lost the signal and just goes blank. Usually I have to turn the tv off and back on again to get it to come up. I also have a H44 Genie that I moved in it's place and have no problems what so ever. In addition to the 2 Genie's I have 2 C41 Mini's, one linked to each Genie and have had no problems with those Mini's. Oh, did I mention that the C61 Mini has been replaced 3 times since I started having these problems. I've heard rumors that the are coming out with a 4K receiver (H64?), has anyone heard when this will be. I've been a DTV customer for almost 20 years and have never had these kind of problems. Any inputs would be appreciated.