Sorry for being all geeky with you, but I have to firstly say that it is a big deal that the Power Rangers have been going for 15 years. I have grown up watching them, and although I miss the "old days" I must say I still enjoy collecting toys and such from my childhood related to the series. I am jealous of everybody who went to Power Morphicon, which had many of the series' actors, as well as great stuff for sale, and more! There are pictures and videos over at rangerboard for those of you who are interested, and soon there will be a 15th anniversary episode of Operation Overdrive, which will feature some of the stars from the past in a teamup. It has something to do with an evil son of Lord Zedd and Rita coming onto the scene.
Whatever the case, may Power Rangers continue, and go and be as successful and long-running as Japan's Super Sentai is proving to be! To top it all off, here is a good music video that includes clips from all 15 seasons so far! Enjoy!