As soon as you start a program the app will register your progress so that in case you need to interrupt your session you can continue later.
If you need to stop watching the fight/program will show up in a new section called Continue watching which you can find on the channel and live page. You can access this collection on all devices (web, Android and Apple) which means that you can start a fight/program on your mobile while you commute and continue at home on your big screen.