Commercials have definitely gotten worse over the past 10 years. Used to be 3 - 30 second commercials so a minute thirty taken out of a 30 minute show 3 times. Giving a total of 25.5 minutes viewing of the show. Now if you watch the shows on demand without commercials the average episode length is on 19.5-20 minutes. Go back 20 years and there were only 2 commercial breaks and really half of one break ran over to the next show so for 30 minute show you got to watch 27.5-28 minutes of actual show and they had shorter title intros.