This past January, found a working Sony KV 7010U Chromatron.

See this link: http://www.visions4.net/journal/time-line/

Scroll down to 1968 to read the story and follow the second link (Page Five) to see photos inside the set.

When found, only had a blue screen, so I asked Andy to help with the repair. There are screen shots at the link.

Second link: http://www.visions4.net/journal/time-line/page-two/page-two-a/page-three/page-three-a/page-five/

This is not a tube television, but it was manufactured in 1968.