It seems that music videos and tv episodes on YouTube have a high view content and I was wondering if watching these videos on your HDTV via a Mac Mini is a pretty good substitute for purchasing a physical DVD of these videos? I have a new Mac Mini with a built-in HDMI port and a video card that supports HDTV resolutions. Should I hold off buying music video DVDs and tv box sets and instead start to purchase them off iTunes or watch them on YouTube? I don't currently own an HDTV but will eventually purchase one. If I want to start doing what I've described above, will I need to purchase a device (like a splitter) from my cable modem company, which is the same as my cable tv company, to connect the incoming cable lines to both the back of the tv and the computer in the family room? I currently only have one physical cable modem connection for the computer in the bedroom. I've never used a wireless connection and am not sure how they operate but I'm concerned about security issues with it regarding people driving by and people able to snoop in. I'm sorry if this is a basic question but I am still "old school" when it comes to technology.