Rca Tk-41

[W.B.]

I noticed the photographer misidentified the TP-7A slide projectors as TP-6's, now that you mention it. So if NBC did have TK-28's as of 1976 and he called them TK-27's, well . . .

As for WNAC-TV using PE-24's (as I saw in GE ads from 1964-65 - they might've added some PE-240's to their roster of equipment after 1966), they were in good company with other RKO stations: WOR-TV (Ch. 9) in New York, KHJ-TV (Ch. 9) in Los Angeles, and WHBQ-TV (Ch. 13) in Memphis also used these GE film chains in their respective setups.

And I wouldn't be surprised that WBZ-TV would've had TK-27's; sister station KYW-TV in Philadelphia also used them. (Whereas WFIL-TV, known after 1971 as WPVI-TV, had PE-24/240's.) As for WKBG: Would anyone know if the use of those TK-27's crossed over to the station's 1974 call letter change to WLVI? It would seem that those TK-27's also had horizontal linearity issues, along with the other bugs you mentioned.