I have a Smash Bros Melee setup with a low-latency display and a low-latency Wii->HDMI converter. I'd like to split the signal across two displays (so everyone can see the screen during 4-player matches), ideally with zero added latency (but up to 2ms or so of extra latency would be OK).
With analog video tech you can just physically split the signal, but I'm not sure this applies to HDMI; most splitters are active devices. Do these splitters introduce any lag (e.g. by capturing, buffering, and retransmitting packets)?