I just looked at pictures of a 2014 Wildwood 252RLXl and the cable AND satellite ports were on the street side rear wall back of the slide. Honestly, looking at photo's of a 2015 model I didn't see any tv coax ports in the normal locations. Maybe they put them on the underside of the trailer rather that in a wall, don't see why they would do that but they need to be somewhere on the outside to hook up cable. You need to ask your dealer those questions, they should have been discussed in your walk through.
2014 Palomino Puma 25RS
2011 F-150 Super Crew XLT
Days camped in 2014 - 23
Camped 2015 - 47
Camped 2016 - 51 done - 6 more planned so far