Here's what I've Dug Up by state:
ALABAMA: None, since All Alabama Public Television Stations were in operation in 1969
ALASKA: KTVA, Anchorage (1969-1975)
ARIZONA: None
ARKANSAS: NO DATA
CALIFORNIA: NO DATA
COLORADO: KRMA Served Denver, No word on rest of state
CONNECTICUT: WEDH can serve the entire state, so no problems here
GEORGIA: GPTV was fully operational in 1969
INDIANA: WLWI *(1969-1970)
KENTUCKY: KET and WFPK held the fort
LOUISIANA: OUTSIDE of New Orleans: I think WBRZ in Baton Rouge and KSLA in Shreveport (Latter took place of KTAL in 1972).
MAINE: Fully operational
MARYLAND: WMPB 67 Signed on in 1969, Others who couldn't receive WMPB used WETA, WHYY, or even WITF.
MASSACHUSETTS: No word on Springfield.
MISSISSIPPI: WMAA (now WMPN) Signed on during Season 1, but the Mississippi Authority of Educational Television (MAET) Banned Sesame Street due to it's "Integrated Cast" in May of 1970 (Ban was overturned about 22 days later). Otherwise, Only areas that could watch Sesame Street were on the Coast (WYES, New Orleans and WEIQ Mobile), and in Northern M.S. (oxford-Southaven area) (from WKNO, Memphis).
If anyone has more information to help me out, PLEASE LET ME KNOW!!