Wahoo! It's always fun to watch the TV perform better and better by stages, as you replace more and more of the bad old caps. I should use your photos as evidence, the next time someone persists in trying to diagnose a specific problem before bothering to replace any caps.
Funny how all of those 6SA7s were bad. They look identical. Perhaps the Tung-Sol quality control person had a hangover that day.
Phil Nelson
Phil's Old Radios
http://antiqueradio.org/index.html