I just watched the Assen TT they uploaded on the YouTube channel, and I'm hooked. What now?

I see that videopass is there for the preseason 2019, and being as $23 a month is steep for me going into the new season I was thinking of getting it to watch seasons past. My question to you guys is which seasons for each division are the best championship battles or racing to watch? I think I've found a new love.

I see that videopass is there for the preseason 2019, and being as $23 a month is steep for me going into the new season I was thinking of getting it to watch seasons past. My question to you guys is which seasons for each division are the best championship battles or racing to watch? I think I've found a new love. http://ifttt.com/images/no_image_card.png