Wireless RF modules

I am new to RF modules. One of my is a remote controlled spy-robot. It needs live video feed from the robot wireless-ly, to the receiver such as TV. The robot is also controlled wirelessly with a remote. My doubt is, if i use a long range RF module, do i have to use separate transmitters and receivers for these two different process (Video feed and remote control)…? Does the channels of RF modules has anything to do with this…?

Use Quadcopter technology: 5.8 Ghz video transmitters and receivers.
Use wifi or something else (433 Mhz or 2.4 Ghz) for control.