Comcast Remote requires 3 digits be entered to change channels

Those have to be programmed for the television. https://customer.xfinity.com/remotes/

Find Your Comcast Remote Control Programming Code
make sure your using those codes with the AUX button. Comcast does not have all remote codes for every electronic made though.

I have 2 pro scans Comcast hd. On Comcast remote small button ( for me Its small circular button bottom right) HD ZOOM. (enter above it)

Hello
Philips universal remote control cannot be synchronised with Apex Digital TV. There is no code for Apex with it. There are very rare remote controls which have codes with Apex Digital. Comcast On Demand Custom DVR 3-Device Universal Remote Control is one amoung them. Codes for Apex Digital Tv; with this remote are:
0748, 0765, 0767
Buy this one. It can be sychronised with most of the present devices. OK.

I called Comcast about this today and they had me turn off the TV, unplug the DVR, unplug the coaxle cable, wait a second, rescrew in the coaxle cable, replug in the DVR. It worked! The DVR is snappy like it used to be. Such a relief because it was soooo annoying. Good luck.

Unplug the cable box from the wall socket, wait a few seconds, and then plug it in again. I've heard that this solution works.

I had the same prob and found the answer posted elswhere.
This worked for me...

If you go into the main menu under Setup --> Guide Setup --> Set Auto-Tune to "YES".

now the channel will change without the 3 digit requirement.

code TV/ 0156 or TV/ 1256 (or TV/ 10156 or TV/ 11256

Go here, it has a viewable manual for the comcast remote and a list of codes. There is also a way to search codes listed. Haven't tried yet, but it can't hurt trying!

http://www.scribd.com/doc/202024/comcast-dvr-remote-manual

The answer depends whether its a Comcast DVR Remote or a regular one. The DVR codes are 4 digit -- the others are 5 digit. I got 0060 to work for my DVR remote.