Our 2016 2250LE has a 32" in the center of the bunk area with twin beds on either side. During our initial look-over, I wondered the same thing. I hopped up on the bunk and looked behind the TV to find a 10"ish deep cabinet behind the TV. Waaaait a minute - it is a flatscreen, how do you get to the extra space behind it? There was a big grab handle above the TV. I was tugging on it when the salesman suggested that was a handle to assist in getting up into the bunks.
Then how to get to the space behind the TV?
He pulled on a cabinet pull handle located just under the TV - the panel that the TV is mounted on opened up from the bottom (hinge on top) revealing the space, and has two gas struts to hold it open. The wiring is wadded up in the top of the space, then exits the cabinet through the right wall. The upper section also contains the 12V power port for the TV and the antenna connections with a switch for the amplifier.
Where does your power plug into? Can you see/follow the antenna/input/power leads from the TV?