I have just had a new TiVo box and want to use the hdmi output to supply my tv and also a TVs booster to distribute it around the house ...... Is this possible ?
You can send HDMI over coax cables https/www.monoprice.com/Product?p_id=16046&gclid=CO2Lu_KmvdICFYZXDQodMqgHZg
but the coax can't be used for anything else.
There are ways to distribute an HDMI single as a channel over coax but that is very expensive.
http/www.pviusa.com/VeCOAX-PRO4-HDX-RF-Modulator_p_43.html?gclid=CN2RtKKnvdICFYePswodZRMEBw