In the early ’90s, George Takei — Star Trek’s original Mr. Sulu — guest-starred on 3rd Rock from the Sun, playing himself at a sci-fi convention. But Takei has done more than just milk his most famous role. On I’m a Celebrity! Get Me Out of Here! last year, he lived in the Australian jungle for 21 days. His big baritone voice also landed him a stint on The Howard Stern Show. That voice and those Star Trek creds make him the perfect narrator for the Cleveland Orchestra’s Sci-Fi Spectacular program tonight. The show features music from Star Wars, ET, Harry Potter and the Sorcerer’s Stone, Superman, 2001: A Space Odyssey and, of course, Star Trek. Jack Everly conducts. Showtime is 7 p.m. at Blossom Music Center (1145 W. Steels Corners Rd., Cuyahoga Falls, 216.231.1111). Tickets: $21-$87. — Michael Gill