Well...I had a few minutes to get under the set tonight. I realized I forgot to mention one more problem. I have a vertical deflection problem also. Most of the time when I power the set on the raster is very compressed vertically. I can get it to come back by wiggling a cap on the vertical osc tube. I'm sure I can find the issue there and fix it.
I was able to find the source of the "zipper" effect in the video. I have a bad cap in the horizontal oscillator. The cap in question is an 88pf cap. I had a couple of caps in parallel with a clip lead in the circuit as a temporary replacement. When I took the clip lead out and soldered the caps in place the problem disappeared. I do need a correct capacitor to replace the defective one. Does anyone have any spares?