Digital home theatre is new to many at their home. It's basically brand new in RVs. The Columbus brand appears to be designed for home theatre speakers via Panasonic/Samsung device only. The design was not for playing TV through home theatre speakers. It was watching a movie via streaming through internet or dvd playback.
So for all you guys that say the home theatre stuff doesn't work, we all know now that it does indeed work. It works as designed by Columbus factory engineers. After reading the manuals for Hisense tv and Samsung home theatre/dvd devices, I found LOTs more things these units can do. Columbus factory simply setup these two devices for the very basics.
While your reading manuals, learn what the buttons do for the remote controllers for TV, home theatre box, fireplace, microwave, tv in bedroom, furnace/ac controller, etc. There are soooo many buttons, swtiches, knobs in these luxury Columbus rigs it will drive you nuts. When it's raining outside, read a manual for a device and play with it. Lots of us just know the basics on how to run our RV. After you figure stuff out to a deeper level, you'll then realize why the guy showing you how to use your RV during the PDI is really just covering the basics. It takes time to really learn about all the features built into your Columbus. As you learn about them, you will enjoy your RV that much more.