[DaveWM]

those lower voltage ones like the 400-600vdc I would have no problem lifting a leg and checking with old school cap tester. I have found some of them to be just fine, others test leaky. I think it has to do with the enviroment the set was stored in.

looking it over maybe C45 if you have trouble with vert setup, If the the pic looks ok other than vert sweep and that pull in at the bottom, I doubt those other caps on the top of the pcb will make any change. I am not a fan of wholesale replacement unless there is a symptom. If I check a couple and they all tested leaky I prob would assume they rest will be, but with those I would say better that 50/50 they are ok. If they were wax paper then I would not even test, just replace on sight as prob more then 90% will test bad.

of course shot gun of all those white ceramic tube caps will not hurt anything, just make sure you replace with the correct value.