Those antennas you crank up are far better in my opinion. I hate that mushroom we have on top.
That being said, I get a "decent" amount. ABC, CBS, NBC, Fox, plus all those other digital channels that I prefer: MeTV, H&I, AntennaTV, etc.
Oddly though, I have only tried to hook up cable twice and unless I'm doing something wrong, ours does not work. In our past Forest River experience, cable TV connections on their campers has always been downright sorry.
2015 F350 6.7L Lariat CC LB
2016 Vengeance Touring Edition 40D12
Former Forest River Campers:
2004 Puma 30FQSS
2010 Sabre 31QBDS
2014 Work & Play 30WRS