All your doing by using an HDMI output to a T.V. is using the T.V. as a monitor, no extra power is needed for the laptop to operate. I run my RF 7.5 on a 55" flat screen T.V. mounted on the shop wall via an HDMI cord. Work's great!!! A smart T.V. can be used wirelessly but there is a lag in the feed between the LT and T.V., at least mine did. I have not noticed any difference in RF's ability with any controller type's input, that being the Interlink, my radio connected, or my radio connected wireless.