Well, I agree with Don on this one. It's definitely one of my Trek peeves.
It seems like almost every Starfleet character's hobbies or interests all relate to the past, and to the 20th century most frequently.
I always found this an easy out for the writers of the show. Admitedly, they threw in plenty of "future sporting/hobby" references (such as Risian hoverball, Bajoran springball, Parisi squares, 3d chess, and what have you), but it seems to me they relied far too frequently on the 20th century for plot hooks and character devices. I mean, how many times did the main characters visit the 20th century via writer-fiat, holodeck, or space-time continuum accident.
That's just my two strips. I agree with REG, though, thank goodness at least for the lack of pop culture marketing seeping into Trek.
Well, except for the Rock vs. Seven, of course.
LQ
Drunken DM and the Speak with Dead spell: "No, I'm not the limed-over skeleton of the abbot, and no this special key in my boney fingers does not open the door to the secret treasury! ... Oh crap."