In article
outelectronicequipment
..com, kovicky@[unlisted] says...
I have a Sylvania Superset model # RPK708 CH03, chasis # 27P1-02. I'm
starting lose focus and see 3 seperate colors (blue, red, and yellow). Is
there a minor adjustment I can make or a part I can replace to fix this.
I'm not exactly sure where to start. Recommendations would be
appreciated.

Sounds like the CRT is getting soft and the yoke is sagging.
Likely will be hard to justify cost of repair.