We are waiting on delivery of our Reflection 303 and do to the fact that this is our first RV we are in the process of accessorizing. This brings me to the question which is preferred? Being an EE I understand the differences and the technical aspects, what I don't know is how the RV parks are outfitted. We are also considering using our I pad and stream to the TV, is there a USB port on the TV? Thanks in advance.