My first two fandom crushes came round about the same time and long before I knew fandom and slash existed. They were Starsky/Hutch (Starsky & Hutch) and Bodie/Doyle (The Professionals).
The two series were shown on UK TV at round about the same time when I was growing up. We used to watch both shows as a family and really enjoyed both of them. For me the two couples were just that: couples. Both bond so well with one another, they complement one another and also contrast one another and it's quite, quite clear they would do anything and go anywhere for one another.