Connecting my splitter to my fire stick from my Element TV

Connecting my splitter to my fire stick from my Element TV

I I seen in a previous post that someone was having an issue with their firestick and their Element TV Circa 2010 I bought the splitter that was recommended and my picture is flashing in and out any suggestions? Talk to Amazon and they said the TV is too old and is not compatible with firestick even with the splitter

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