Lately I have been getting these sparkles running across my screen of all my tv's in the house...just the lower VHF (2-6) channels. There is also an aggravating noise that goes with it. It's at it's worse when the temperature drops...below 50 degrees or so, the colder it gets, the worse it is...during the summer, they go completely away. I've checked for any running motors (ie washing machine, refrigerator, attic fans, ceiling fans, AC/Heat) to no avail. My tv is on a APC UPS, great AC filter. I tempted to try some type of terrestrial filter on the antenna input into my dss multiswitch. Has anyone else experienced this...if so how did you fix it? I live in New Orleans. All TV transmitters are East/SouthEast of me at about 30-35miles away. As for the terrain, it don't get no flatter than this!!! Any help would be greatly appreciated... Thanks, Tim K.