Pixelation Issues - only a couple of channels

The first answer to this type of problem is always "check your connections, remove unnecessary splitters, etc." but I've never seen this fix anything. When everything has been working fine and suddenly fails it's usually something on Xfinity's end.  I too am seeing a weak signal on just a few hd  channels (A&E, TNT, AMC, SYFY).  There may be more but I'm not interested in going through every channel to find out.  Most of my channels have excellent signal strength (98% or greater).  The ones that I see failing are around 68 to 71%.  I having checked SNR on other channels, but A&E is about 27 which is below minimum  requirement (which I think is 30 or 31 if I remember correctly).  In any event, I think the only way to get this resolved is to get a line tech out, but trying to get Xfinity to send one out without having them send an in-home tech out (which in my experience will be a waste of time since they always blame in-house wiring, etc.) will be next to impossible. For now I'm just watching the SD channels for the few failing channels.  If I really want to see something on those channels in HD I can always use my Roku. If it wasn't for my better half I'd cord cut and just stream. 

Thanks for letting us know @GregAG  .   Like I said, it's always outside of the home.  You're lucky to have gotten someone to fix this.  I've had nothing but trouble with the in-home techs trying to blame inside wiring for problems in the past.  My local office has been good about getting line techs involved, but I'd have to go in to their office and I don't even know if they are open with the current lockdown's in place.  As I noted before, I have workarounds - especially using streaming when needed, so for now I'll probably just wait until the current health situation subsides. 

Ive been having the same problem with A&E, so tired of the same old lines of check connections, reset box, call tech. If its one channel, if not anywhere on the customers side.

Still having pixelation problems.  Xfinity’s default solution to this problem is to again send a technician to the home. If he/she is unable to fix the problem, they are supposed to request assistance from the line/system specialists. According to Xfinity that is their only method for referring issues to those specialists. I told them that many of us in the neighborhoods affected by this problem had already had home visits by technicians and the issue had not been fixed. In my case, the tech tried three times to sign off the job as completed but the system still showed a fault so he was unable to do so on his first two attempts. Before trying a third time, he had a long conversation with someone, probably his supervisor. By then the tech was way overdue on his schedule and I heard him say “What am I supposed to do?” At that point, I suspect the supervisor bypassed the system and allowed him to  sign out, even though they both knew the problem had not been fixed.As he was leaving, the tech said he hoped he had fixed the problem, but that maybe it was actually a system problem.

I spoke with an Xfinity technical supervisor and he couldn’t explain why Xfinity’s response to failure to fix a widespread problem was to send a technician for a home visit, when this process had already failed to correct the issue in several residences in the same general area (AL36695)

I was about to remind him of a common definition for insanity....however he had already scheduled me for a home visit tomorrow, which would focus on the effectiveness of the roadside connection . He promised that the tech would be instructed to immediately request assistance from Xfinity system engineers if he was unable to fix the problem.

It would be interesting to see if there would be a better response to this issue if each affected customer would call Xfinity in the next couple of days. Just say “cancellation” when asked the subject of your call. You will quickly be referred to one of their retention specialists. Tell them about the problem you’re having with Xfinity service and ask them to convince you as to why you should remain an Xfinity customer, when you are paying for a service that does not work. If they get a volume of calls with same dissatisfaction issue this may help to get Xfinity corporate to address it.

THANK YOU!!!!!!!!!  I've been having this issue with just 1 of my boxes - the main bedroom for quite awhile.  I have plugged / unplugged everything numerous times.  I have spoken with Xfinity on the phone several times.  I have replaced the box twice (BTW - I dislike the new voice remotes, but that's for another time).  I even went out and bought a new TV.  I tried finding the other non-HD channels and it took me a while to figure out how to turn off the default to HD.  Once I did that and went to the SD channels, IT WORK BEAUTIFULLY.  I can live with SD in the bedroom, which is important to have while I'm falling asleep (broken up voice doesn't allow one to fall asleep easily).  I just wish I got what I paid for (meaning the use of HD on all boxes).

THANK YOU.  THANK YOU.  THANK YOU.

cable TV signal problem(s) that causes pixelation can be either/both inside or outside the home. There so far is no reliable way to determine without the tech gear scanning each of the channel frequencies that the set top boxes use for service. the tech can check outside of the home if you want to eliminate the change that the issue(s) is outside your home and fixable for free. for inside the home issues as determined by the technician, look at your current wire path including splitters and amplifiers and post that information here.

I had pixelation on ESPN and ESPN2 only, which is a recurring problem, every couple of years or so.  The solution for me in the past has been to replace the cable card in our Tivo box.

I picked up a card yesterday and installed it today.  The card would not pair through the Tivo app so I called Xfinity customer support.  After numerous attempts to send a signal, the first tech bumped up the food chain.  With the first tech, I had to find and read to him the Data ID and Host ID from the Tivo screen as he could not "see" the adapter or our service.

The second tech, after many more sent signals, recommended a service tech visit.  I asked why, as I removed a working adapter, it would require a technician to visit?  I told him I would re-install the old card and see if things worked again.

Things worked again just fine, and as an added bonus I now have a signal strength on ESP of 90 instead of 77, and no pixelation.

I wonder if "pinging" my Tivo box caused some sort of refresh to take place with the card?

The sales person in the store told me that Xfinity is trying to discourage people from using Tivo by adjusting signals to cable cards.  Hmm, I don't think so.  If they were doing this, which I believe would not be legal, why degrade just a couple of seeming random channels?

Someone need to move Comcast's antenna. CBS really bad last few days. 

Tbs,hgtv, discovery, history just a few that are crappy and pixelated for over a year! Changed the coax, the hdmi and even went to store and swapped out hd box. Same issues. Rebooted, reset all the fake waste of time techniques, may have even prayed once , nope still un viewable . I don’t need a tech in my house I agree they should start at street level and replace aging cables probably compromised from the weather as I know those boxes are not water tight they are like 20 years old. So??

Same type of issue with only one channel (local CBS affiliate in Hartford area) having pixelation problems for the last couple of weeks.  Happens on all TVs in the house just for this one channel so not isolated to one piece of equipment and more than likely coming from feed from outside.  I'll give it a few weeks to see if it clears up before I call.

I see people identifying signal strength or SNR for channels.  Where are you looking to get this info?   

Only local stations such as channel 4, public broadcasting, ion. Are have a pixelating pic abd broken sound.

no refresh to box or connection tightening has fixed

I'm having the same pixelation problems. Only on one channel (YES HD), and only on some of the boxes. Frustrating. A tech was out recently and removed a bunch of splitters. Not sure if that caused the issue.