Is there an option to use the Samsung remote to change channels?

If the Samsung remote is capable of controlling 3rd party devices, then it may work if set for a Comcast or Xfinity cable box. You would need to aim the remote at the box since it would be IR only.

HI there @danhajduk! I hope you are enjoying your weekend! Thank you contacting our team of experts here on social media. You asked a great question, in regard to our channels. Currently, the only way to change the channels is by using our Xfinity remote or by using our awesome Remote app. I love it! You are actually using your phone as remote. You can easily download the app on through the Apple store or Google store. I'd like to share this helpful link with you regarding app; https://comca.st/3vZYp2r should you decide to download it. Please let us know if you have any other questions. 

Is there an option to use the Samsung remote to change channels?

If the remote is a universal remote, https://www.samsung.com/us/support/answer/ANS00050204/ may help.