My husband has Alzheimer's and needs things to be VERY EASY to do. I have a Charter cable box that uses a HDMI plug. My DVD has one HDMI Plug and my TV has two. I can get the TV to work, but not the DVD. I have a set of red, white and yellow plug wires. I'm older and have no understanding of this stuff. I need simple explanations as to how to do this. Do I need to buy him another DVD Player with 2 HDMI ports? He also has an old AMP, is there a way to hook that up for him as well, as he likes using it for volume with his speakers.