HTTP_USER_AGENT of Netlink:
Mozilla/2.0 (compatible; PlanetWeb/1.011 Golden; SEGA Saturn; TV; 640,480)
Mozilla/2.0 (compatible; PlanetWeb/1.135 Golden; SEGA Saturn; TV; 640,480)
Mozilla/2.0 (compatible; PlanetWeb/1.147 Beta Update; SEGA Saturn; TV; 640,480)
This is QUITE easy to fake in Netscape (hard to near impossible under IE). As a result I just went and downloaded the 4.035 Beta. Is it really only ~470k? How long does it take for you guys to normally download it?