OnlineVideo Soken, CyberAgent's research institution focused on online video ads conducted a TV time spend survey - so called "Low-tele survey" to 20000 people at ages 10~60 years old.
According to this research, 1 out of 6 people in late teenagers and 20's either "do not have a TV" or "have not watched TV in the past 30 days" whom are categorized as "Non-TV". Also, the "Low-TV" category who watches TV less than 1 hour on weekdays and less than 2 hours during weekends have increased 5pt in the late teens and 6pt in the 20's.
The survey categorizes people's TV behavior in the below 6 categories;
- Non-TV; people who do not have a TV or have not watched TV in the past 30 days
- Super Low-TV; people who watches TV less than 30 minutes on weekdays and less than 1 hour during the weekends
- Low-TV; people who watches TV less than 1 hour on weekdays and less than 2 hours during the weekends
- Middle-TV; people who watches TV more than 2 hours on weekdays OR more than 3 hours during the weekends
- High-TV; people who watches TV more than 3 hours on weekdays and more than 3 hours during the weekends
- Super High-TV; people who watches TV more than 5 hours on weekdays and more than 5 hours during the weekends
The Low group (Non-TV, Super Low-TV and Low-TV) is 38.6% and the High group (High-TV and Super High-TV) is 32.3% out of the entire people. When you look at these groups by age groups, Low is 48% within the late teens, 45% within 20's, 44% within 30's, 42% within 40's, 35% within 50's and 26% within 60's.
Detail in Japanese article;
CyberAgent research - 2018 Time Spend on TV