I find that I would like to start the next decade of my life off right by quitting watching TV. Anyway what is your best advice to quit watching TV?
Power on. Power off. Simple.
Or better, sell your possessions and follow Christ (per the mantra in Luke 18). - In a decade's time you'll sense what you lack, buying back what you miss, or already learnt to live without. I did this and it's been working. One of the best things I've done. Regaining willpower, independent thought, critical thinking, etc.
Television is devil-vision. Apart from obvious reasons, I find the commercial TVs auto programming and instant gratification rots the head like this Roald Dahl poem describes,
https://www.poemhunter.com/poem/television/.
Quitting TV allowed me time and energy to read every book, article, journal, I could digest. Spending months reading Scripture and seeing things I'd never bothered to in the past. Our multiple LED/plasma TVs also became obsolete during that time making it easier, thank God.
A decade later, I watch 'TV' again, but
selectively and now on a large projector screen in a theatre room, only films and shows I choose to stream/download. And almost always
socially, as bonding time with my dad for example. I've found the low reflectivity of a projector and sitting in a dark room for a couple hours before bed (as opposed to burning one's retinas staring at a bright LED screen) makes falling asleep easier and sleep is deeper also. Less tossing and turning with images burnt into the back of the eyelids so to speak.