Yes you can.
Your laptop only comes with 3 antenna leads though so if you buy a card that requires 3 leads, you will also need to buy a 3rd lead and route it somewhere inside of the laptop to get expected signal/performance.
MB: ASUS Rampage IV Black Edition
CPU: Intel Xeon E5-2697 v2 (Cooled by Corsair H100i w/ Noctua NF-F12 fans)
RAM: 64GB G.SKILL RipjawsZ 1600 (10-10-10-30)
GPU: EVGA GeForce GTX Titan X Hybrid
TV Tuners: 2 * Hauppauge HVR-1800
Case: CoolerMaster Cosmos 2