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Sealtest,
Just one oscilloscope is usually enough.
What scopes do you have? Older scopes work somewhat different than newer ones. I can steer you in the right direction for "how to"s on them online. Many of the ones that come up in a search deal with very modern types.
Do you know if any of them work?
Do you have probes for them?
TVs are very complex in there operation, until PCs came out they were the most complex electronics in the home.
Getting the screen to "light up" is called getting a raster. That is about half way to getting a picture. Not to be confused with getting the heater in the CRT to light.
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