My biggest pet peeve with my 3DTV (Sony) is the need to switch back and forth between 3D modes like SbS. SENSIO's Autodetect would seem to be the perfect solution, but why TV manufacturers are not implementing it I have no idea. Even just last week, China's largest TV manufacturer signed an agreement with SENSIO to license their Hi-Fi 3D format and their S2D (3D-2D) Switch. Yet no mention at all of their Autodetect feature.
I am less then thrilled with my overall experience with my Sony 3DTV and am looking to buy a new 3DTV sometime soon (likely passive this time). But I will never buy another 3DTV that doesn't have some sort of ability to automatically detect the 3D format.