Multipsk
21 May 2018 Check out our in-depth review of the Xfinity X1, Comcast's DVR system. An older TV that doesn't have HDMI, setup can be a bit more complicated. Or find a port that could work for an older TV, check out our TV port guide.Stand directly in front of the TV and TV Box to reduce the angle between the remote and the TV Box. Firmly press and release buttons on the remote one at a time. Try using a Comcast universal remote from another TV Box, if available, to isolate and check for problems. Power cycle the TV Box.