I want to play video files, that are on my I Pad, on the television. There are several cables that appear to be suitable but I am not sure which one I should be using. What set up should I be using? I am thinking it should b the 30 pin to HDMI ? Am I correct? Will this transfer sound and video from the I pad (third generation) to the television or am I thinking of the wrong cable I see there is a composite cable set up, but my thinking is that HDMI is always a better connection nowadays?