I'm thinking long term about making me a fan and keeping me.
I realized when I read his obituary, that I watched Lou Albano's entire run as a manager. The best part of TV back then was the 5 minutes of interviews in the middle of the show and Lou was hilarious. He would be the constant every week for years. His guys changed every few months. His stuff with the Valiants and Muraco was great. Also I realized that WWF has been ruined since Lou turned into a babyface manager for the most part.
I will put two together because the timeline and stories are so similar. I found Japanese video rental stores in NJ around 1990. I saw Manami Toyota and Kenta Kobashi go from great youngsters to stars to retiring 20 + years later and was a huge fan of both all of the way. I've gone to Japan many times and seen hundreds of shows. I'll never forget being a ringside photographer when Toyota became 50th WWWA champion. I made a special trip to see Kobashi/Akiyama at Tokyo Dome.
They are all gone now. Someone who might keep me watching it for a long time like that is Takumi Iroha.
My historical 4 would be Frank Gotch, El Santo, Rikidozan, and Hogan.