I actually carry a 7/16-inch wrench on my TRUCK D-RING key chain. Can't count the number of times this has come in handy hehe...
All of my HDTV sets have a short 3-foot RG cable already connected to the back etc. The end of the 3-foot RG cable has one of the radio shack barrel adapters where I make my connections... Much easier to have it all in front of you to work on it...
We always bring along a second 25-foot RG cable and two port splitter transformer with short 6-inch RG cable for hooking up to the camp ground PEDESTAL CABLE connections. One 25-foot RG cable goes to my trailer CABLE Connector and the second 25-foot RG Cable goes under the trailer and is available to use for bringing our HDTV outside to set under the PATIO awning to watch sitting around the camp fire.
Roy Ken