A:AnswerIOGEAR Says: The Transmitter when connected to the source will transmit audio and Video though the HDMI connection. Thank you for choosing IOGEAR
A:AnswerIOGEAR says : No if you are using the GW3DHDKIT, this is one to one only. Please look at the GWHDMS52MBK2 https://www.iogear.com/product/GWHDMS52MBK2 . Thank you for choosing IOGEAR.
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.