Interactive T.V.'s own version of MAC's Spaces?

Imagine having a split screen like this to view favourite channels, with the current channel you are viewing is in the centre. 

I'm still intrigued about ways of proving ways we interact with our T.V. Last time I was focused on the issue with information about channels, here I will attempt to innovate the way we can view our favourite channels. 

Currently: Well Sky+ allows you to save favorites my pre-determining them before in main menu. To view the favourite channels you select the blue button on the controller and you can view them at the bottom. See Below>>>

This approach is all good and very useful. But there are a few drawbacks such as only textual information is given to the user about what is on their favourite channels. This is all good but it seems very static and provides user with little feedback. 

Proposal: Adapting a few of MACs functionality such as Spaces function could be useful addition. It dawned on me that this function would be really useful to be adapted to interactive t.v. in particular favourite channels.

How it would work: Well imagine you have determined your favourite channels and when you click the blue button on the controller, the screen splits and you can view your favorite channels. Moving the left, light, up and down keys you can scroll through  the channels and it would give precedent to that channel.

Benefits:Provides more information to the user. They would be able to see visually what's on that channel and any other of their favourite channels. There would be the element of better interaction in the sense that users would be able to get more valuable information for there interaction.

Issues: There are issues that need to be understood such as this approach takes users away from the channel they are viewing. In some cases people do not like this, and they rather view what's on other channels whilst watching the one they are. So this would need to be overcome. A possible solution would have a screen in the middle that allowed you to view the channel you are viewing whilst the other channels would be shown in the other 4 screens. 

Further development: Its important to note this idea is already implemented effective in Sky Sports Champions League coverage: where you are able to watch multiple matches. There are other features that apply to computers that can be applied to T.V. This is just one of many.