Xfinity X1 Box and General Access

Please bare with me while I attempt to cover the issues / problems / attempted 'fixes.' 
I often sit here looking at my blank TV for anywhere from 15 minutes to 45 minutes after I turn it on in the morning. It worked fine last night. I can't believe that 'everyone' is experiencing a wonderful TV reception with no issues. I am not new with this service or this company. I have a customer of cable TV in Washington state since its inception. I grew up with black-n-white 'Howdy-Doody,' Brakeman Bill,' 'My Miss Wanda,' 'JP Patches,' 'Captain Puget' and others. I began my enslavement to cable TV with TCI cable. This eventually became Comcast and now Xfinity. 
I have the little black X1 box and the xFi Gateway. I have internet and TV. 

The TV has been blank now for forty (40) minutes. The Internet is fine. I have been through the Xfinity app and the 'Assistant' only to end up in a never-ending circle. I have had a technician come to the house (more than once).

Once the TV (little black box X1) gets a signal (?) or is 'warmed up' or whatever I finally get to watch what I pay approx. $200/month to access. I have been through all the 'hoops' that Xfinity desires of me. I unplug power to the X1; I unplug the Gateway; I disconnect and reconnect all the ethernet, coaxial and HDMI cables; I 'restart the Gateway'; I pray; I do black-flips; I plead with RA, the Sun god; I check the cable coming into the house; I check the connections from the pole-drop to the X1 black box and the Gateway.

What I have learned by process of elimination is that; I don't need to check the cables from the pole-drop to the X1 box / Gateway. I don't need to Restart Gateway; I don't need to unplug power / disconnect ethernet or coaxial from the Gateway >> I was watching this TV just 5 hours ago! The Internet part of this service is good. I rarely have an interruption in my Internet, except when I 'Restart the Gateway.' 

So, (in basic, non-technical terms) the TV signal comes through the pole-drop cable to the junction at the outside wall; the cable goes across the house to the location of the Xfinity Gateway; the cable attaches to the Xfinity xFi Advanced Gateway XB10; the signal is then sent via Wi-Fi to the X1 black box; an HDMI cable carries the signal to the TV. If the Internet is working there is nothing to check along the route from the drop-line at the pole to the Advanced Gateway. As the only issue is with the initial start-up of the TV / X1 box, the remedy is confined to these two items and connections. 
The only thing I have found to be helpful is disconnecting and reconnecting the power to the X1 black box. I usually give it about 20-30 seconds. To be clear, this is NOT a sure-fire remedy. It probably just makes me feel like I am doing something beneficial to unplug and plug the X1 box. After I do the X1 box power 'reboot' (after about 20 seconds to 5 minutes) I receive a flicker of an image, then a static image, possibly with Error Codes interspersed such as: RDK-03117, XRE-03090, XRE-00021, RDK-03031, and RDK-03033.
Due to the process of elimination, I believe the TV reception / image display problem is confined to the X1 little black box. Any useful assistance with the Xfinity Assistant? No. Any useful information through any/most Forums? No.
As the contestants of a beauty contest report a wish for 'world peace,' I also have a wish. I wish for uninterrupted, flicker-free, frozen image-free, instant-on TV access, 24 hours a day for 30 days. It would be too much to ask for a year.
I won't hold my breath . . . . . sorry for the Rant . . . . but I blame Xfinity for my insanity