Apparently WABI wasn't carried at the time...TV Guide's Maritimes edition didn't even carry it until late 1976. And WABI wasn't carried in all areas...some places, like my hometown of Amherst, didn't even get CBS (or PBS for that matter) until CANCOM added Detroit channels in the early 80s! By 1980, CBHT would move to cable 11, CJCH to cable 8 (9 after MITV signed on in 1988), and CBHFT to cable 2.
Interestingly enough, WEMT had some ads in that week's 4th Estate TV section (their logo at the time resembled WKBW's long-time Circle 7 logo). One of the ads giving the phone number for the Halifax sales office...Bangor stations had sales offices in various Maritime centers in the 70s and 80s for Maritime businesses to advertise- pretty sure Maritime ads kept WEMT/WVII in business, cause their programming was nothing to write home about LOL!!