Onkyo TX-RZ820 7.2-Channel 4k Receiver

I was very hesitant to purchase this receiver due to some of the negative comments about the video cutting out on the HDMI board and customer service being unhelpful and ignoring customers. My experience with the customer service was nothing but helpful and prompt so I am not sure what the issue is with other customers. When first connecting my receiver I knew I would need at least 25 feet of HDMI cable because of where the unit was going to be so I bought a 35 foot cable just to be on the safe side. And to be clear, this cable would be exiting the back of the AVR's ARC/CEC HDMI Out port going into the TV's ARC/CEC HDMI in port. The cable I purchased was a 2.0 4K cable but only 10 gbps which I would later realize was my mistake. My TV is a Sony i 4K 60Hz HDR etc. which is far more demanding than what the HDMI cable could handle and I just didn't do the needed research to know this. I connected everything and set the receiver up. Setup is a lot more intuitive on these newer receivers which I found to be refreshing and I was up and running in no time. I had a day of solid running from the unit. The sound is amazing however I was only able to select Dolby Digital as the best surround option and not Dolby Atmos which I assumed to be something I was doing wrong but should have been my first clue as to using an improper HDMI cable. Day 2, it started happening, the dreaded picture drop for several seconds than returning. Progressively, it began to get worse. By the end of the week I found myself doing factory resets several times already just to regain the picture as the signal would eventually go away permanently. I was at loss for words cause I just got this unit and I couldn't believe that I was experiencing the issues everyone was talking about already. This problem is very different from Onkyo's hdmi board issues of the past which were plagued by cheap capacitors and poorly chosen solder for the DTS chip which in the end could have used a heat sync. These problems typically showed up after several years of use not one week! And how come a factory reset always brought back the picture signal? Something wasn't adding up so I researched and contacted customer service. Customer service was willing to repair the unit one time no questions asked which is the polar opposite from what I have been reading in the reviews. But, before sending it in I wanted to upgrade my HDMI cable as by this time I researched this is not only what causes picture drop for ONKYOs but a lot of other branded AVRs as well. I researched that if I am pushing a 60Hz 4K HDR signal across a 25 foot span that my cable would have to be capable of a minimum 18 gbps, be Dolby Vision, HDMI 2.0, HDR10, HDCP 2.2 and 1440 120hz compliant along with E-ARC. Oh and that 35 feet would not do unless I was going to purchase a booster for the cable. So I ordered the 25 foot one and made it work. After doing that every issue I was experiencing went a way. I now get Dolby Atmos, a cleaner picture, and I have not experienced one picture drop since changing the cable. Its been a couple of weeks now and the receiver is functioning without hesitation. I really hope that this review helps people. If I had known this information from the get go I could have saved myself and others a lot of time and I feel that some of these other reviews are robbing people of a great experience. ONKYO has had their share unfortunately, of some bad choices in components but for sound quality alone you can't get anything better for the money.