My newer SNES will not work right with my tele which is a SONY Trinitron. However with newer cop-off ( but not with that trini picture ) and other model
( Zeinieth ) it will work.

Why is that?

I heard there is built in lock-out that was from the early 1990's Jap vs. US techno wars. Some model SNES will not work with various televisions. I can only guess this is the act of SONY+Nintendo at the time or import lockout.

I heard again there is a device that I can put threw video ( not UHF or Coalax ) that will will give a me good picture without pluging it into the wall. I checked my local radioshack but they no longer sell them item and presented me with a Coalax to HD device.

Thank you for responding.