Was Bell working on television?
Still running through old Google Books looking for details to use in digital models. Came across an issue of Bell's quarterly 'Journal'
from 1925. Holds a variety of articles about the system's progress, finances and research.
The research section includes a couple short articles about hearing by Fletcher. This wasn't a surprise; working around speech and hearing I've often used Bell's abundant information, and Fletcher's acute observations are still a foundation for current perception research.
But these two items did
Sure sounds like Ives was working on a television system in 1925. If Bell had proceeded along the lines implied by these two summaries, they might have reached a color system with something like an LCD screen. They got scooped in '27 by Baird
at BBC, then by Zworykin
at RCA. I presume they gave up the quest.