Eastern New England TV Guide, week of March 11th-17th, 1961, listed these stations:
2---WGBH-TV (Educational), Boston, MA (Studios at 84 Massachusetts Avenue, Cambridge)
4---WBZ-TV (NBC), 1170 Soldiers Field Road, Boston, MA
5---WHDH-TV (CBS), 50 Morrissey Boulevard, Boston, MA
6---WCSH-TV (NBC), 579 Congress Street, Portland, ME
7---WNAC-TV (ABC), 21 Brookline Avenue, Boston, MA
8---WMTW-TV (ABC), Riccar Inn, Poland Spring, ME
9---WMUR-TV (ABC), 1819 Elm Street, Manchester, NH
10--WJAR-TV (NBC/ABC), 176 Weybosset Street, Providence, RI
11--WENH-TV (Educational), P.O. Box Z, Durham, NH
12--WPRO-TV (CBS/ABC), 24 Mason Street, Providence, RI
13--WGAN-TV (CBS), 390 Congress Street, Portland, ME