Marty-
I have a local shop in my area where I test all of my tubes so I'm covered there.
I have the reproduction pushbuttons ordered and they are on the way. Since I have to wait for the pushbuttons to arrive before I install the radio chassis and bezel, I'll put that on the back burner.
On to the television chassis. Looking over the underside of the chassis I can see that there was repair work done to the horizontal output circuit. That could account for the replacement horizontal output tube.
Can any one spot anything else out of place?