Using TV (PN 43E 450) as a really large PC monitor...
Forgive me for butting in - have the same question.
Made the HDMI connection to port 1 and later also to port 2 on the TV with the other cable end via USB into the computer. After making the necessary changes via the remote's "Source" button, the computer screen was mirrored to the brand new Samsung BUT without any of the app icons of the computer.
Thus I was not able to access the internet. The skimpy flyer "manual" refers to the Samsung's ability to link TV and computers but gives no details on the "how".