What kind of TV do you have? My 2008 GMC did not have the fuse in the fuse box that allowed me to being charging the battery when hooked up to the truck....discovered it after 5 years and that was by luck.....it was when my converter failed (which I knew) and hooking up to the truck did not charge the battery and hence I could not raise my landing gear.
2017 GMC 3500 Sierra Denali, C/C, D/A, DRW, w/40gal Aux tank, 18K B&W Patriot.
2019 Cedar Creek Hathaway, 34RL2 - w/Bells & Whistles and disc brakes
Traded 2009 Cedar Creek Silverback, GII, 32 WRL