In the early days of TV, most major Hollywood studios saw it as “the enemy,” the force that was driving down attendance at movie theaters.
In those days, only Universal (which frankly could use the money), Walt Disney (who knew how to use TV to promote his movies and new theme park) and Warner Brothers really embraced the new medium.
Warner Brothers specialized in churning out 60-minure Westerns and private eye shows for ABC-TV. They began with the Western Cheyenne. When that clicked, others soon followed. One of the first was Sugarfoot, starring Will Hutchins.