set top box to Imac retina 5K?

[NicD]

Anyone connecting HDMI output into an iMac retina?
is it even possible?

Would like to use it as an Ultra HD display

Nic

[FlossyThePig]

NicD said:

Anyone connecting HDMI output into an iMac retina?
is it even possible?

Would like to use it as an Ultra HD display

Nic

No!

You need to investigate Dell UltraSharp 27 Ultra HD 5K Monitor and then you will realise how clever Apple have been getting their display to work (custom chips).

[NicD]

Will have to wait for the new Apple TV box I guess