Col, what you now have is a superb diagnostic instrument in the TV itself. The screen can now tell you so much. Even if you don't fully understand what it's saying the pictures you post can speak volumes. In the post before mine Dave has made a suggestion about the field timebase. He may well be right.
Now is the time to complete the re-capping. John's approach of one cap at a time is admirable but a bit too tedious for me. I tend to go section by section, for example do the whole of the field timebase and get it working nicely. This may also involve the odd resistor change too as some, especially those over 100K, may be well out of tolerance.
PS: There's a ghostly apparition holding a camera visible just above the test card
