I vividly remember in 1996 one of the cable TV stations in Germany had a basically year-long celebration of "thirty years of Star Trek", airing all the movies, premiering new seasons of DS9 and airing the first season of Voyager for the first time (Germany was a year behind every season, probably because of dubbing and other licensing terms). I was teenager then, loving everything about Star Trek.
And last year it kinda hit me like a brick that in just three years time (now two) we can celebrate "sixty years of Star Trek".