found this report, might be of interest to some:
http://notonbluray.com/blog/comb-tb-tests/Comb filters tested:
Pioneer HLD-X9
Pioneer CLD-D925 (Dual PAL/NTSC player)
Pioneer CLD-939 (Japanese Pioneer CLD-97)
Faroudja LD-1000 (Tweaked Pioneer CLD-99)
Leitch DPS-575 (Timebase corrector and 3D comb filter -> SDI)
Snell and Wilcox TBS-185 Kudos Plus (Timebase corrector and 3D comb filter -> SDI)
Sony HX-903 LCD Television
CYP SY-P295N S-video and composite to HDMI converter
some great explanation of the Video Essentials LaserDisc test patterns