Apparently, the problem is back. I ran tv_grab_na_dtv --configure a few minutes ago and got the same thing. I downloaded the nightly just now (did the perl ... make ... sudo make install, of course) and the problem is still there.
~$ tv_grab_na_dtv --configure
Which is your time zone?
Select one: [0,1,2,3,4,5 (default=0)] 0
Enter your zip code to include local channels.
Zip Code:  2xxxx
Select the channels that you want to receive data for.
p.s. I didn't really enter 2xxxx. I entered my actual zip code.
Ubuntu Intrepid (8.10)
AMD x2 64
20GB boot (9GB free)