New Head-canon (Chilean Whovians, welcome)
The eponymous Profesor Rossa of the chilean nature show “El Mundo del Profesor Rossa” is a TimeLord. Need proof? Weird clothes, check. Curly hair, check. Older than he looks like, check. Un-orthodox colors of clothing, check. Several companions (Don Carter, Guru Guru, el Tio Valentin), check and his manor is his TARDIS. Or maybe he uses Betamax and VHS tapes as tools (A SonicTape, perhaps?)
Thank’s to Fran R. Agnic for the theory.