I just changed my Xfinity service to 1000/40 and got the self-install kit for customers that supply their own modem. Which seems silly, given that I already had working service through them and ...

Comcast offers self installation for many of its Xfinity customers. Here's how you can quickly set up your X1 box and activate your cable service.

Lol, idk what planet you guys are on, but Comcast has never charged me extra. Self install was always free and you could bring outdated devices to one of the stores and swap out to a new device ...