use a hdmi spliter to 2 HDMI outputs(.Spliter needs a 5v 1000mA power supply. costs spliter+ps aproximatetely 30 $??)
.take one of the outputs to your HDMI input of your tv.
in the other output of the spliter connect an HDMI cable to the HDMI input of an HDMI to AV adaptor(yellow ,white, red...