My very first Sentai was also Gokaiger. I discovered it back last july. Im pretty sure i watched all 19 episodes that had been released by that time. The very first sentai i finished was Shinkenger and I think after that point it was all down hill from there. Also, Like Kamen Rider Meteor and Den-O, I too check out toplessrobot everyday since i discovered it two years ago lol.

Minor correction: My first Sentai was technically Turboranger (Thanks to a Japanese store that sold old VHS tapes. Also where I had my first Kamen Rider experience, with "Couga"), and the first one I understood what was going on was MagiRanger.

Gokaiger was the first that I watched from start to finish, though.

My first real Sentai was Goseiger, which I started watching because Power Rangers was effectively cancelled. I stuck it out about twenty episodes, but ultimately dropped it because it was shit.

Gokaiger is the first Sentai I actually watched from beginning to end.

My first series was Dekaranger. I wasn't feeling SPD (Sorry guys) and I was curious as to the original was like. Ever since then I was hooked.

Actually he's always a dick. Especially about comic book company related stuff, which really pisses me off because I manage a comic shop.

However, back on topic. My first sentai was a very brief single episode of gekiranger when it had first been subbed. I was on a kick in high school of looking up PR stuff on youtube and discovered all the pre-zyuranger stuff. So once I finally figured out that it was an adaptation of new shows that came out every year in Japan I wanted to know just where they were at. So I stumbled across Gekiranger on youtube. Didn't care for that one episode. For the least few years I was watching alot of Kamen Rider and had my first full sentai series experience with Gokaiger.

I'm a pretty new fan, so the first Super Sentai I ever watched was Shinkenger. That got me into Super Sentai to this day.

Bioman or Flashman was my first exposure to the franchise

Tokumei Sentai Go-Busters. I was unable to find a subbed version of previous Sentai series, so when Go-Busters started, I figured why not.

The first Sentai I watched? Not the PR version? If so, my first Sentai was GaoRanger.

ive never actually finished a sentai for some reason other than akibaranger, so ya, akibaranger