This is the first episode of the show. I like this for an obvious reason; it started it all. This episode also showed the rangers contemplating being super heroes and showed what would happen if they didn't become rangers.
2. The Green Ranger Saga episode #17-21:
Rita creates her evil Green Ranger and nearly wipes out the Power Rangers. Probably one of the best PR episodes ever because it introduced Tommy and created a formidably enemy equaled only by the Psycho Rangers. These episodes had a tremendous influence throughout the time that Tommy was a ranger.
3. Doomsday episode #39-40:
Angel Grove throws a celebration for the Power Rangers and Rita unleashes Goldars mighty zord Cyclopsis. Simply and awesome episode. Great zord battles and Cyclopsis is just awesome to look at. If you have the old Power Rangers game for Sega Genesis you know what I'm talking about.
4. White Light episode #77-78:
Zordon creates and new ranger and makes Tommy into the White Ranger. This episode introduced the White Ranger and showed off Tommy's awesome new powers. Also part one originally created an awesome suspense thing because every kid wanted to know who the new ranger was going to be. Plus when Kimberly fainted was a really cool moment.
5. Return of the Green Ranger epsidode #104-106:
Rita sends done the Wizard of Deception. He's an old enemy of Zordon who clones Tommy and makes him the new evil Green Ranger. Way cool episode because the White Ranger and the Green Ranger fight each other. Plus the Dragonzord fights the White Tigerzord. Too the Wizard of Deception looked real cool.
6. Hogday Afternoon part 2 episode #155: The Alien Rangers defeat Hydro Hog and Tanya replaces Aisha. Finally Lord Zedd and Rita blow up the Command Center. Only one reason why this is one of my fav's and thats because the Command Center is destroyed. After all this time it is finally wiped-out in a cool explosion. Plus this sets the stage for Power Rangers Zeo.