For Internet-only customers, we offer two options that do not require an in-home tech visit. Orders can be completed online, in-person at an Xfinity retail store, or by phone. This should give you enough room to attach the cable box without bending any wires. You should see several slots and connectors in the back; this is where you'll plug in all of the necessary cables. You should see a circular power input on the back of the cable box; fit the end of the power cable into this input.
Insert the batteries into your remote, then proceed with connecting it to your TV and cable box.
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Place the cable box near the back of the TV. Skip to main content Enlarge. Comcast told us that in these cases, a new customer would be required to talk to a Comcast agent, who would presumably ensure that the current resident is actually moving out before allowing the new customer to hook up to Comcast's network. We've worked hard to make the self-install experience simple and easy and it's a growing and popular way for new customers to connect. The installation fee might be charged even if the home you're buying service at has existing Comcast service, and even if you order Internet speeds lower than those purchased by the current occupant. Not Helpful 1 Helpful 0. It's good to have a general idea of where the cable box will go before you start plugging in wires, so make sure the box is roughly where you want it before continuing.