I have a 2014 Kodiak. It did not come with a monitor. I did install 2 32" flat screens and they are connected to both the dvd player and the 72 ohm antenna. I also have a Tailgater satellite dish going to the HDMI input.
So far, I have only managed to receive one terrible off-the-air signal at the state parks where I camp. There are no big cities within reasonable distance from any of them. I suppose on the east coast there are many more transmitters. There is no "button" to press on my Kodiak. As far as I can tell the stock Winegard antenna is not powered. Before buying the Tailgater I explored off-air options, some have been suggested here. I came to the conclusion that without a park cable connection, there is little chance of me getting significant reception where we camp.
The Tailgater costs less than $500 and requires no real installation. I simply connect the dish (it is a box) to the satellite input on the trailer and then connect the satellite output (on the panel where the manufacturer suggests mounting a LCD) to the Dish network receiver.
Dish has a program where you only pay for the time you actually use their network. It costs from $39 - $150 a month depending on the programming you want. We just returned from our first trip with the new service. It took some trial and error to find the right location for the dish. Once we did, it was perfect. Just as good as our DirecTV at home.
Before getting the dish, we watched DVD's. I admit that I like TV and having the 200+ channels makes evenings more pleasant. I am pretty sure that you can't get this deal in Canada, but there must be some equivalent there.