Back to the Des Moines Sunday Register's TV insert, in the 1960's the Cowles family's "Newspaper Iowa Depends Upon" put out one edition for the entire state. If a station put a Grade B over even a county or two of Iowa, the station likely had a listing. It may have been the most unwieldy TV listing anywhere. And with the listings organized by station, not time, there was simply no room for a quick program synopsis. Programs with titles longer than twelve characters were abbreviated as there just wasn't room.
It might be easier to list the stations that didn't make it: Lincoln's KOLN-TV 10 and KUON-TV 12, but since the southwestern corner of Iowa was already blanketed with Omaha signals, plus St. Joseph, maybe it would have been overkill to have a third CBS station for that region. Why KUON-TV wasn't listed is a mystery. It was the de facto NET outlet for Omaha in the early 60s, back when the N was for National, not Nebraska. Perhaps it was seen as an embarrassment how far ahead Nebraska was over Iowa in the realm of educational TV. KUON used full visual power of 316 kW and 830 ft HAAT between Lincoln and Omaha, and covered several southwest Iowa counties. Little KDPS-TV 11 Des Moines was a rather small operation owned by the Des Moines schools at the time, the only NET outlet in Iowa whose 320 ft HAAT and 28.8 kW visual power kept it limited to a 30 mile radius. (thanks to AmericanRadioHistory.com for reference material)
From memory, these were the stations listed in the Des Moines Sunday Register TV listings, with 1967 calls and network affiliations:
NORTHWEST
Sioux Falls:
KELO-TV 11 CBS
KSOO-TV 13 NBC
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Sioux City:
KTIV 4 NBC
KVTV 9 CBS
SOUTHWEST
Omaha:
KMTV 3 NBC
WOW-TV 6 NBC
KETV 7 ABC
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St. Joseph MO:
KFEQ-TV 2 CBS
NORTHEAST
Mason City:
KGLO-TV 3 CBS
Austin MN:
KMMT 6 ABC
Rochester MN:
KROC-TV 10 NBC
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Cedar Rapids:
WMT-TV 2 CBS
KCRG-TV 9 ABC
Waterloo:
KWWL-TV 7 NBC
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La Crosse WI:
WKBT 8 CBS
SOUTHEAST
Rock Island:
WHBF-TV 4 CBS
Davenport:
WOC-TV 6 NBC
Moline:
WQAD-TV 8 ABC
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Hannibal MO:
KHQA-TV 7 CBS
Quincy IL:
WGEM-TV 10 NBC
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Ottumwa:
KTVO 3 CBS
CENTRAL
Ames:
WOI-TV 5 ABC
Des Moines
KRNT-TV 8 CBS
KDPS-TV 11 NET
WHO-TV 13 NBC
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Fort Dodge
KVFD-TV 21 NBC