Do I need a different modem or cable box? My tv is not plugged into cable outlet. I want to do it on wifi.
if you wish to use a wireless X1 set top box they are available however you have to be using a newer professionally installed Comcast modem with the MoCA interface. call 800-Comcast to order. the Xi5 is a regular wirelss box, the Xi6 is wireless 4k/UHD set top box.
Smearing -- Do you still need assistance with this?