Go into MENU, go to setup tv, be sure tv is set on antenna when using antenna, set to cable when using campground cable system. After being sure your on antenna (assuming your using it), do a channel scan. This may take a few minutes and don't interrupt the process. Once the scan bar reaches 100%, the tv will revert to a channel and you can navigate thru all the channels found during the scan. This process will only be successful with the amplifier light on and the antenna pointed in the general direction of the local stations. Good way to determine the direction to point your antenna is check out other rv's in the campground and emulate them! Good luck.
Days camping (2015)----88 days
Days camping (2016) ---110 days
2016 Wildcat MAXX 28RKX (33' TT), 2007 13' Scamp
2015 Ram Laramie Hemi
30 years RV'ing
12 different RV's