I used Lynx to grab the source of 2600's webpage, grep'd out the URLs in the pull down menus, sed'd these URL fragments into real URLs, and then piped these URLs in a file that was wget-friendly so I could get some MP3s.
lynx -source http://www.2600.com/offthehook/archive_ra.html | grep /offthehook | sed 's_">.*__g' | sed 's_ __g' | sed 's_<optionvalue=".._http://www.2600.com_g' | sed 's_<option selected value=".._http://www.2600.com_g' | sed 's_<optionselectedvalue=".._http://www.2600.com_g' | sed 's_\t__g' > OTH
wget -r -l1 -t1 -nd -N -A.mp3 -erobots=off -i OTH