Favorite channel using firestick

No way to add a tv station as a favorite using firestick. Launched xfinity stream on my phone. Did a search for ABC nothing found! Trying to watch abc world news tonight and i couldn’t find it anywhere either on my phone or with the firestick! Doing a find on the firestick finds old episodes of abc world news tonight- I WANT THE LIVE STATION! I don’t know how i eventually found it on my firestick but i found it after it was half over. Which is why i want to add it to favorites on the firestick, but can’t do. That’s why i launched the xfinity stream in my phone but i couldn’t find abc world news tonight! This is nuts and makes this xfinity stream a joke and unusable for me! Sheesh!