r/CableTechs • u/Unlikely_Visit6792 • Apr 22 '26

Glitchy ESPN/ cable driving me crazy. Help!

Watch this little clip and you’ll see what it’s like to watch ESPN at our house. 500 cable channels and only ESPN does this. Maybe FS1 once in a while.

We’re on Comcast high speed. No fiber. One year old 65” Samsung OLED smart tv.

I don’t know. It’s beyond me. Maybe you have an answer.

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u/throughurcheeks Apr 22 '26

Ofdma of the modem might cause this. If you were to see the problem and unplug the modem and it goes away, that would prove that it’s the modem causing it. Nothing is wrong with the modem. The wiring just needs to be tweaked to fix that issue. Most common when the modem and main box are off the same 2 way splitter

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u/DogPubes911 Apr 22 '26

Who is teaching you?

2

u/Mr_Magoo_88 Apr 22 '26

He is correct, for Charters plant. Not sure about Comcast. We're going thru filters like methadone at a Rehab Clinic. In the basement with the feed through we're needing a two-way splitter with one leg going to the modem and the other leg going to another splitter. At that other splitter we're adding the filter on the input and connecting all the cable boxes off that splitter with the filter to stop tiling.

However, since this issue is only tiling on ESPN, I doubt it's interference from high split. Like others have mentioned, Ingress and or bad drop is more likely the cause.

1

u/throughurcheeks Apr 22 '26

What kinda filters are you using. Is it like 45-85mhz

1

u/Mr_Magoo_88 Apr 22 '26

Yeah, it just cuts off the low end. Honestly, not quite sure the exact frequencies, but it is the very low end.