I bought the DVD set awhile ago and started watching it again. While I enjoyed it and remembering when I watched the crap out of it as a kid, its not the same. The acting was bad, and the story lines too. Also you really notice the recycled shots they used over and over again during the space battles. I didn't notice it as much as a kid. My favorite worse episode was the one with the Golden guys who anything they touched turned to gold or jewels.
Twikis voice did change because Mel Blanc didn't do it for some episodes according to Wikipedia.
"When the power of love overcomes the love of power, the world will know peace."