• On Saturday, November 14th, the touring "Star Wars In Concert" comes to the TD Garden for both a 3:00 PM matinee and an 8:00 PM performance. The concert is described as "John Williams' breathtaking score from the epic Star Wars saga … performed by a live symphony orchestra and chorus, accompanied by a stunning video montage on an enormous LED screen." Anthony Daniels (C-3PO) has been narrating this concert, though it's unclear if that's only at specific venues. Us Bostonians are no stranger to hearing Mr. Williams' soundtracks performed live, as the composer is also the director emeritus of the renowned Boston Pops Orchestra and often serves as guest conductor, but a dedicated concert to this particular score is a rare treat. Tickets are $32.50, $52.50, or $72.50, plus applicable taxes and fees.

• That same weekend is the New England Fan Experience (NEFX) sci-fi convention. Star Trek headliners include Bostonian Leonard Nimoy (Spock Prime) as well as John de Lancie (Q), though the former will be available only on Saturday, competing with the aforementioned Star Wars concert. Online tickets (via a Web site that is remarkably reminiscent of a GeoCities page) are available through November 6th for $45 each, or for $50 at the door.

• NEFX 2009 is held a week earlier than in 2008, avoiding the conflict that occurred last year with the annual Super Megafest, traditionally held the weekend before Thanksgiving. That means this year, you can attend NEFX one week and Super Megafest the next! The latter is held in Framingham, less than a half-hour west of Boston. The expo — which features an unusual amalgam of sci-fi actors, comic book artists, TV show stars, and pro wrestlers — will this year present Brent Spiner (Star Trek's Data), Ray Park (Star Wars' Darth Maul and, more recently, G.I. Joe's Snake Eyes), and James Marsters (Buffy's Spike). In addition to signings, each star also has a half-hour Q&A session, though the schedule is unknowable prior to the event: an email from its coordinator informed me, "No, panels will not be posted on the site. Most celebs will do Q&A sessions both days. However sat is probably the better day to see more Q&A sessions." Last year I happened to show up just in time to see Jonathan Frakes; otherwise I would've been out of luck. The actual show floor is quite small but packs a lot into it. Tickets for the entire November 21-22 weekend are only $20.

Though the two conventions offer cheaper admittance than the orchestral concert, they also have the most potential to drain your allowance, based on how many celebrity autographs you want to go home with; typical fees range from $20 to $50 or more per signing. This will be my third Super Megafest, and I usually budget $100 for at least three autographs.

If you'll be attending either the Star Wars matinee or the Super Megafest, be sure to say hello to Showbits!