Is it possible to use your iMac as a television?

[yearofthe]

^ 21.5" model

 

[r.j.s]

Connected how? Directly to a cable? No.

You can get TV tuners and connect it that way.

 

[zMacintoshz]

check out this company if you want Mac tv Tuners
http://www.elgato.com/

 

[TMRaven]

Need a tv tuner. The main thing separating any display with a dedicated television is that televisions have tv tuners. The other would be that televisions have all sorts of post-processing filters in them, tuned to whatever the manufacturing company thinks creates the best picture.

Elgato is a prime pick.