MOCA Bridge - explore the possibilities

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Check out a MOCA Bridge. I already set one of these up in my house. I did this to improve the wifi signal in the house and it worked great. Total coveage in and around the house. Now I'm wondering if HDMI over Cat 5 would work via coax. Anyboby in the know, know if this will work?

http://www.dslreports.com/faq/16626
HT- Samsung PN50B860/Integra DTR 30.3/Rt55 Fronts
Rt35i Surrounds/Cs1000p Center/SVS BP1000 Sub
2CH - B&K MC-101 pre/B&K EX-442 amp/NAD 2400 amp
Polk SDA1C, Polk Monitor 7, New Large Advents and Polk RTA 8T
BR - Yamaha CR800/Polk monitor 5