Red Sox broadcast rights in 1961 were very small.

[Kevin Vahey]

Fascinating look at what MLB teams generated from Radio-TV in 1961. The Red
Sox payment from WHDH was quite low compared to most teams.

http://www.baseballnation.com/2013/8/29/4670580/the-cost-of-baseballs-broadcast-rights-in-1961

WHDH-AM-FM-TV paid only $425,000 for everything - which was quite low
compared to what other teams were generating.