Yes things tend to get very misrepresented, especially on chat shows. So it's mostly good that it isn't being discussed.
It's probably that Aspergers is not as "extreme" as full-on autism, so it wouldn't make for very good TV viewing, especially since people with Aspergers seem mostly okay, just a little awkward. Also for autism they can get autistic children and work the "cute" sympathy angle whereas Aspergers has more of an effect when you are older (I would think) so they can't do that.
I do see some stuff about Aspergers though! And what with House (he's just a jerk though right? ha ha) some people will probably want to look up stuff about it maybe.
edit: repetitionnnn