Hi DishSubLA, I would be happy to fix this for you. Please send us a private message with your account number and 4 digit pin so we can get started! Thanks.
Thank you so much for your offer, but I have no problems. This or similar itty bitty problems is TYPICAL when Dish engineering is tweaking, often for making room changing out encoders or manually adjusting software/encoders themselves or in some other way tweaking with the system in the wee hours of the night. For about 3 days always just past midnight PDT (3:00 AM EDT), only a few HD channels would be lost and the boxes (yes, two of us watching in 2 different rooms) would switch to SD. Sometimes the HD channels would be black for just about 5 minutes, but after about 20 minutes, all was well. As a subscriber for over 10 years I have seen this type of anomalous, but very temporary, for like only several minutes, behavior many times. Further, Engineering has confirmed on past Tech Forums they do this stuff whenever possible late at night when the vast majority of customer never notice, but some of do notice, but it's never a huge problem when they do it because we have tons of other HD channels to tune to during that strange 20 minute period for 3 days, and things ALWAYS return to normal before a half-hour and this stuff rarely occurs during the daylight hours when many more people are watching Dish (sometimes Engineering monkeys with the LIL late at night, as well, but I haven't noticed so for many many months). BTW, as a "coincidence" Pack 12 went 24/7 just a day or so AFTER they were tweaking on previous nights. I think they were making room for PAC 12, and probably more or at least "experimenting."
I was offering a possible explanation as to why the OP found some of his HD channels looking like poor PQ having had the system change to SD without my noticing. FYI, we have NOT had that problem ever since.
To make clear, our system is working as it should, it was just monkey business after midnight and only for a span of 20 minutes, then all is PERFECT again, and only for 3 consecutive nights. Again, thank you so much for offering you assistance. This is exactly one of the big reasons I stay with Dish, because of overall (not the overseas CSR's) really good customer service from people in the USA. So, glad you and the rest of the DIRT team are here to help whenever we need it.