Hi guys. So I recently bought an HMDI cable as well as a lightning-to-HDMI adapter since my MacBook pro doesn't have a direct HDMI port. I plugged it into the TV and changed the input (duh) and though the sound from the laptop was playing through the TV, the display on the TV just showed my plain desktop wallpaper. I had Chrome open and what I wanted to watch continued playing on the laptop but not the TV. I don't want to have blown the money on cables and adapters that don't work, please help!