Hello. I have all of the following requirements for 4K TV but can only get 4K on one of my TV's. It is the TV connected to the main PVR box that can only watch 4K channels. The notes from Telus below (#2) seem to indicate that my other TV's should have access to 4K channels too, but they do not. The message says that the box does not support 4K.
Not all of the set top boxes are 4K capable. Some are only 1080p. What models are the non-PVR boxes? Are all of your TVs 4K?
Cisco ISB7105 boxes only support up to 1080p and will not be able to display 4K content. Those boxes are typically provided for non 4K TVs. If you wanted to watch 4K content and the TVs are 4K also, then you'd have to contact Telus and discuss upgrading the set top boxes to 4K capable ones.