Report Interfernce with TV and Internet in XFINITY (Comcast Cable Communications) Posted November 8, 2009 I live in the Huntsville, AL area and starting on Friday the 31st I have had an issue where occasionally I will get what looks like some background noise on my screen which at the lower channels is hardly noticeable but when I go up to the higher channels it's very noticeable. When this problem occurs it also affects my internet. When it first started it would happen for only a couple of minutes and my modem would reset, however lately it doesnt reset my modem, it just becomes very laggy, although a few times the lag is hardly noticeable. The last couple of days when I have reported this problem they have checked the signal to my modem while the problem is occuring and can't seem to find a problem. I don't have a digital cable box so they can't check that side of it, but when this problem happens, the unencrypted digital channels my HDTV can pick up go completely out. And when the problem happens it just happens, and when it stops everything immediately goes back to normal. Theres no gradual decline or improvement or degrees of severity. I have taken my TV outside and connected it directly to the coax leading from the tap and noticed the problem as well, so I know this isnt the splitters in my home. The main problem is this is happening mainly late nite, so when the technician comes out on the 9th he may not even notice the problem. Does anyone have suggestions I could tell him to look for? Any help would be appreciated.