Advice needed! Use of tv as a second screen

[laurielol]

Ok so basically I wonder if its possible to run a lead from my desk which is located on one side of the room to my TV which is located fixed to the wall. The whole reason for this is to stream "Sky" to the TV.

If its possibly what lead shall I get?

Product details:- new iMac 21.5 & HD TV (not a smart TV)

Thanks in advance!

 

[simsaladimbamba]

How to: Connect a MacBook, MacBook Air, or MacBook Pro to a TV

Most common video interfaces on external computer displays and TVs

Common video interfaces on Macs and the appropriate adapters to connect to other display devices

Most common audio interfaces on external computer displays, TVs and the Mac​

 

[Muscle Master]

After 6ft.... HDMI cords looses quality

Don't quote that on me

 

[skyenet]

You could also buy an TV box and Airplay Mirror the video from your iMac to your TV.. The TV will also turn your TV into a semi-Smart TV

 

[itsmrjon]

the HDMI interconnect is digital and not analog, therefore distance will not 'degrade' signal in the traditional sense. In reality it will be more of a 'it works' or 'doesnt work' situation.

Much of the quality comes from the decoder of the unit on the other end.
You can do a full read here http://www.avsforum.com/t/794088/clarifications-on-hdmi-cables

But to answer your question, buy the correct length cable which has the correct specification for what you are trying to accomplish. For example, if you want to watch a movie in 1080p with DTS-HD audio, it's recommended to purchase the correct length 1.3 standard cable (do you really need the certified cable? probably not, but it's guaranteed to work)