Hello, Qazpl391! Welcome to the Xfinity Forums.
If you have made any recent changes to your services your channel lineup may have changed. You can use the following site to check what channels are included in each tier: https://www.xfinity.com/learn/channel-lineup?pc=1
Be sure to enter your address so the site pulls an accurate listing for your area.
Some channels such as Travel Channel, UP, WE, etc. are only available in lower tiers.
Please check out the lineup in comparison to your current services and let me know if that helps answer your question or if I can assist you further.