Try HDMI 1-> 4 splitter. Try one from Monoprice. It did not work for me. Maybe because two TVs I have are 1080p, and projector is 720p.
I use 2 HDDVR for three TVs. TV1 is connected with component cables with HDDVR1, HDDVR2, TV2 is connected with HDDVR1 with 50' HDMI cable, projector is connected with HDDVR2 with 35' HDMI cable.