Your 99 Bounder has a Converter to convert 120 VAC to 12VDC ,it may also have an Inverter to invert 12 VDC to 120 VAC for your TV.
Newer motorhomes now have combination units that do both.
Siggy
Happy Trails
Siggy & Ursula
2011 Dutch Star 4020,ISL 400,Compr.brake,FTL XCR,IFS
Allison MH3000
2015 Jeep Cherokee,4x4 Active Drive II,V6 , Brake Buddy,Roadmaster Sterling,
Camping since 1975 Pop-Up,1986 22Ft.TT,1999 Gas MH,2005 KSDP,
2011 DSDP,FMCA 368283