I may have figured this out. I got the recommended code set to use for my Comcast X1 DVR from URC tech support. I was told to use 202 for RF or 195 for IR. I decided to go with 202 and that's where I'm having my problem. However, changing to code set 195 allows the Fav programming to work as expected. The Ent button on my remote works when using code set 195 but doesn't when using 202 unless I use a 1 button macro for Ent. I think the button macro doesn't work with Fav and it must be hard coded. I tried learning the code into my remote from the Comcast remote but it just won't take. I think the Comcast remote is also RF so the IR training is failing. I'd go with code set 195 but I noticed that other buttons like Exit don't work with 195.

Guess I'll keep trying other options but if any one has a suggestion please send them my way.

Thanks.