i never finish shows i start watching

whenever i start a show, i get really interested in it for the first like 3 episodes. but after that i get bored and would browse netflix for the next 30 mins. this happens when i watch movies too. i usually just stop watching after 20 mins. i love watching movies and tv shows btw and i can finish watcing one if it's extremely interesting or if an actor/actress i like is there. i still get distracted even if i really like the show tho. the only show i was 100% focused on was modern family. thats it.