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...