Returning from New York, Macfarlane joined moved to Toronto, initially to work in the fledgling TV division of MacLaren Advertising.

[1] Working with Frank Peppiatt, also at MacLaren, he handled a very early television closed circuit demonstration where a live double header baseball game between the Toronto Maple Leafs and the Ottawa Giants was captured live at the stadium and transmitted via microwave to viewers at the CGE booth at the Canadian National Exhibition (September, 1951).

[2] Subsequently, he moved to CBC TV in Toronto in 1951 and created or worked on many early television shows, including Juliette, Haunted Studio, Graphic, Cross Country Hit Parade,[3] and others.

[5] The Canadian government encouraged a new, independent national network, CTV, to launch non-CBC stations in all major markets.

[6] Peter Macfarlane was a keen scuba diver and wrote extensively[7] for the Canadian Sub Aqua Club and other similar organizations.