A:AnswerYour mac book is making it a secondary screen and the screen on your mac book the primary. You should be able to drag what ever you have open to the TV. How you drag will depend on how the screen orientation is setup. You may have to drag to the bottom, left, right or top. You should also be able to go into your screen settings and change the tv to the primary screen.
A:AnswerI am not aware of any Security available between the two units. I am not aware of any Security available between the two units However the limited distance between transmitter and receiver should limit most hackers or hijackers.
A:AnswerI have had fairly significant difficulties getting the signal from the transmitter to the tv located in the living room to the bedroom in a camper so i would be skeptical of it reaching through two walls?
A:AnswerNo. You're using the output of the cable box to the wireless HDMI. Whatever is playing on the cable box is what will show up on the 2 TVs. You'd have to get another cable box.
