To add a Xumo Play channel to your favorites, please follow these steps:

Using Networks: 

1. Navigate to the Network section at the top of the page
2. Find the channel you would like to favorite
3. Select the channel
4. On the channel page, select the heart icon on the right-hand side to add it to your favorites

Using the Live guide:

1. Look for the channel you would like to favorite
2. On the left-hand side, select the channel logo
3. Select "Favorite network"

Your favorites are located under the "My Favorite" section in the Live guide.