Best Buy.com has the SiliconDust HDHomeRun Prime CableCARD 3-Tuner on sale for $104.99. Shipping is free or select free store pickup where available.
HDHomeRun PRIME (HDHR3-CC) is designed to receive subscription digital cable from US-based cable providers such as Comcast, TWC, Cox, Charter, Brighthouse, Cablevision, Mediacom, Verizon FiOS, and others. It uses a CableCARD that you rent from the cable provider to get access to all the channels that are part of your cable subscription. It has 3 tuners, allowing you to access 3 channels at once.