I bought a 4K TV for Black Friday. I would like to use it as a display for my MBA. After doing some research I found out that I cannot connect it to my 4K Ultra HD via Apple Support website. Is it still possible to use the tv as a display anyway? I ask because I would like to buy a mini displayport and HDMI cable. I will mainly use the tv for watching programs/movies but it would be great if I could use it as display as well. Thanks!