The 25KC50 had an inline, but those were kind of rare. As Chad says, most of the Chromacolor II sets with inline tubes were smaller ones. Infact, I think all of the 13" sets were inline (?).
As far as production years on the Panorama, I say '73-'90. I saw a tube hybrid one once, but only once. Then I saw quite a few ChromacolorII, and PLENTY of early SysIII (9-153 and 9-160 junk). And plenty of the ones with the little startup board next to the FBT that "startsup a fire". Then I also saw a few later ones with the single module on the bottom with tuner mounted on mainboard. Probably about 1995 was the very last one, I would guess. Those, for some reason, were very popular in the Middle Eastern immigrant community. I can't say why, but it seemed that every customer with a Panorama was from Iran, and every Iranian immigrant household had at least one Panorama... Sounds goofy but is a valid observation. Same as all California lawyers had at least one NEC TV in the house in the early 90s
Charles