In my opinion there are 3 TD gens

1st gen: The first gen consist of seasons 1,2, and 3. These seasons are the first gen because these are the 3 seasons that any TD fan has watched they are the OG seasons and are the best ones out of all of the seasons. These 3 seasons also can be referred to in my opinion the Zeke seasons because these are the seasons that tell the story of Zeke

2nd gen: The second gen consist of seasons 4,5, and 6 these are the seasons that the fans who stayed after gen 1 watched. I like to refer to these seasons as the New Age seasons. These are the seasons when they added new characters and has seasons where they were all new. The seasons are the seasons where we see the island dying and in the end of season 6 we are left with no island as well as in 5.

3rd gen: The third gen is very simple these are 7 and the new TDR. This gen is simply known as the spin-off seasons which really are they are 7 was the end of the elimination seasons if they stop at 8