I must start by saying I'm not very technical, but I'm willing to learn! I received the Kindle Fire HD as a Christmas present and I'm starting to play about ?! with it and have a couple of questions. Can I only install apps from Amazon? can I not get mumsnet, Facebook etc? also can I watch tv programmes on demand? I've tried to watch a channel 4 programme tonight but given up as it didn't seem to work! Tia x