Just saying the original poster should put everything back the way it was so he can watch TV using the roof antenna with the boost switch ON.
Then hook up the park cable to the "CABLE" input (NOT SAT) on the outside of the camper.
When the TV is playing channels off the roof antenna he should just turn the boost switch off and rescan for cable channels. It should work just fine.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW