The building used in the series for the establishing shot of WJM (known in the series as the 'Snyder Building') was, in fact (at the time) Midwest Savings and Loan, located one block south of the IDS Center, on Nicolette Mall (the IDS Center is shown in the opening of the episodes - in the later seasons, Mary's wearing a yellow-print overalls-type outfit, as she's crossing), at 801 Nicolette Mall, Minneapolis. When the WJM crew (sans Ted) is looking out the newsroom window, at the sunset, the cut-away shot of the newsroom office is on the east side of the building.
Ted's Change of Heart (1976) won the Humanitas prize for 30-minute network or syndicated television.