There are three different ways to add a channel to Favorites.
1. From the Mini Now Playing screen, select the Favorites star to the left of the channel logo.
2. From the Browse screen, select the 3 vertical dots on a Channel tile and select Add Channel to Favorites button from the Channel Details drop-down menu.
3. Select a category from the Browse screen. On the Channel Listing section of the Category page, select the 3 vertical dots on a Channel tile and select the Add Channel to Favorites button from the Channel Details drop-down menu.