extra cable boxes for additional tv service. After market ones comparable with comcast
I am looking to change to Comcast cable. I plan on buying my own Modem/Router-Netgear Blackhawk C1900. I was also told that Ruko box can be used in place of paying 9.95/ a month for each additional TV. Are there any other alternatives for me to acquire boxes that are compatible with the comcast premium service.