So, I'm looking for a TV series with excellent non-romantic relationships. Friendship, family, teacher-student, whatever. I want the relationship to last at least two seasons, but it can falter for awhile as long as it's repaired. Something with action is preferred, but not required.
Examples -
Supernatural (Dean/Sam relationship)
Buffy the Vampire Slayer (Giles/Buffy)
Gilmore Girls (Loreli/Rory)
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Does the walker choose the path, or the path the walker?