I have the 2013 303TG we love it.
The bunkhouse does have a cable outlet. The cable input to the trailer is in the back and it goes directly to the cable junction in the bunkhouse. I have DirecTV and run the same channel to all four cable outlets with DirecTV receiver in the bunkhouse. Using an RF remote, I can control the channel from anywhere and do not need line of sight. The 303TG has two cable outlets outside. One in the outside kitchen and one on the curb side of the trailer between the two doors.
The bunkhouse does have a 12v outlet.
As far as the lack of a ladder, here is what I use and I think it is much better than having one attached to the trailer. http://telesteps.net/extension-ladders/
I can use it around the house if needed.