If you're doing a lot of runs, the passive splitters can really kill your signal though- a passive 2-way splitters you're dropping ~3.5dB which is over 1/2 of your starting signal on each down ...

Monster's Wireless Digital Express HD product includes transmitter and receiver elements inside box equipment that encodes older video formats to 1080P HDMI, can upscale all inputs to 1080p format ...

Often your local cable office, if you have one, will give you everything you need for free, splitter, extra coax cables, etc. Specifically, a 2 port splitter will be -3.5 dB per port.