IR / RF Extenders are used to deliver the IR (infrared) signal to devices located in a cabinet or another room. Some devices use a base station and wireless to deliver content to various rooms, like Xfinity in facilities, and multi-room setups for Dish.
1) IR to RF: remote control extenders available like nextgen.us or similar products available at retailers Amazon.com, BestBuy.
2) IR Extenders: A good product (and other similar) are Amazon: Click Here
3) Plug on back: If your cable box / STB has an "IR Extender" or 3.5 mm plug in the back, you may be able to use a simple IR extender like This IR Extender