Interesting. Pix #1 shows normal, no need to mess with yoke,
& rings. Pix #2 shows lines that have a "digital" look to them.
I think the TV is OK & trouble is in game or its hook up.
It was common for a bad game switch to cause diagonal line
but not perfect vert lines. SO I would try other sources & TV's
to narrow things down.
73 Zeno
LFOD !