A:
As long as you have a good wireless connection to connect the RoKu to, and an available HDMI port, you can and will be able to use any RoKu, the only drawback is there are some TV's where the HDMI port is to close to another HDMI port or at a very odd angle and I would advise to get an HDMI extender
http://www.bestbuy.com/site/dynex-3-hdmi-cable-extender-black/8620025.p?id=1219697995430&skuId=8620025
As this will allow the RoKu to be connected but have enough slack to not have to worry about the other HDMI ports (I would check to see if you need it before ordering the HDMI extender)